Damage is the primary concern in naval (space) combat. Suffer too much in combat and a position will be destroyed. Doing everything possible to minimise damage suffered may well reduce a position's ability to damage enemies, thereby prolonging combat and possibly ending up with the same result. It is therefore imperative to strike a balance for how a position copes with delivering and receiving damage.

It is not just a question of delivering as much damage as possible, but rather delivering effective damage. Small weapons often have a damage value for their mass, but many defences can ignore damage that does not penetrate. Large weapons conversely may have a low damage to mass ratio, but because the damage value breaches defences, the damage is more effective.

Some weapon systems can be specifically countered. Missiles and torpedoes for example can be destroyed before reaching their targets through the use of point defence.

All ships involved in a battle can now use their ISR engines to target actively hostile ships before round 1 of a battle. Each ship gets a number of attacks based on the type of ISR drives (ISR 1 is most effective) that they have and these attacks are evenly divided between all hostile ships. The damage from the attacks is modified by the Stress of the ship and armour/shields reduces any damage done.

The dmg done reflects the stresses caused while getting into a firing position against another ship. Ships that are not aggressive do not take ISR stress as they are not 'fighting' to get into a firing position.

Notes:
-Only occurs before round 1 of every day's combats.
-ISR 1: 10dmg x 4 attacks per engine
-ISR 2: 10dmg x 3 attacks per engine
-ISR 3: 10dmg x 2 attacks per engine
-ISR 4: 10dmg x 1 attacks per engine

This is basically a list of weapons to be included in the position. There are many to choose from, and for the most part the nature of the weapons chosen reflect the role the position will play. Smaller weapons are generally ineffective against heavy armour, while highly penetrating weaponry may not inflict enough damage to the whole target. All weaponry also has a number of advantages and disadvantages associated with its type. A short commentary follows for each weapon type.

Weapon Types
Beam Weapon
These fire a blast of energy with precision accuracy at the target. Their primary advantage is that they are completely self-contained and do not require the use of ammunition. Their primary drawback is that both planetary atmospheres and the effects of scintillator fields attenuate them.

Launchers
There are two types of launchers - for missiles and torpedoes. They behave in largely the same manner, as both are small devices that launch their ammunition, which then homes in on the target and explodes. The primary advantage with these weapons is that they inflict large amounts of damage and are not affected by scintillator fields or planetary atmospheres. Their primary drawback is that they require ammunition, which is both bulky and prone to explode if hit. Point defence also shoots them down.
Launchers can be given ammunition preference through the use of Weapon Load Out (WLO). If this has not been set, the launcher will fire a salvo of the largest quantity of ammunition available or part salvos if not. Setting WLO to zero for a launcher/ammunition combination will only remove the ammunition from the WLO preference list. Circumstance may still result in the ammunition being used if all preferences have been exhausted or no WLO exists.

Rail Weapons
These use linear accelerators to project a small mass at a target. This mass is generally an explosive charge of some description. The advantage of these weapons is that they fire masses at extremely fast velocities so that some of the damage is kinetic. This makes them efficient and simple to build, as the ammunition is relatively small compared to the mass of the weapon. Their primary drawback is that despite the speed at which the ammo is launched, it is still relatively slow when distances in space are considered. As such they are notoriously inaccurate. As the ammunition is generally not a single mass by the time it impacts on its designated target, point defence is ineffective against them.

Space Fighters (bombers and interceptors)
These are launched from fighter bays. They are launched at the start of each day and have to return at the end of each day for refuelling and ammo replacement. This means that they only take part during the middle two rounds of daily combat. Their advantage is that they are the most accurate type of weapon and as such are most suited to targeting a specific item category such as life forms or weapons. Their primary drawbacks (beyond their limited daily combat use) are that they are expensive to build and can be destroyed by point defence or interceptors.
As well as being launched from fighter bays, they are controlled by them. Loss of fighter bays due to damage in combat causes loss of fighters.

Tractor Beams
These generally do not damage the targets they fire against (although some specific weapons that make use of tractor technology may do so). They are primarily used offensively to reduce the combat speed of the target. This will in turn reduce the target's dodge bonus. Their primary disadvantage is that they are not much use without other supporting weaponry.

Accuracy
Each weapon, launcher or even ammo has an accuracy bonus that is applied to the total accuracy and therefore affects the chance of hitting a target. In the case of ammunition-based weaponry, this is the combination of the individual values for both the ammo and the launcher, although in most cases one will be zero.

Damage
Each offensive weapon has a damage value. This is the amount of damage that a successful hit will deliver, generally based on the size of the weapon. Larger weapons of the same type will as a general rule deliver more damage, although the damage to mass ratio will be lower - a weapon ten times as large will not deliver ten times as much damage. Due to penetration of the tiers of defence (see later), larger weapons may well prove superior in combat, especially against heavily armoured and shielded targets.

Armour Factor
Needle beams and armour piercing mechanisms rely on the basis that their damage is applied to a very small area. As such the overall defence is much lower. The drawback with this is that there is only so much damage that can be applied to a vastly reduced area. As a consequence, the damage inflicted by highly penetrating weaponry is generally much lower than the more conventional varieties of the same weapon. The armour factor is the multiplier to any tier of defence that affects the attack. This means that highly penetrating weaponry often has a low armour factor.

The damage to armour is divided by the weapons armour factor (if greater than 1), so a high dmg to AF ratio weapon will strip armour off a ship more effectively.

Blast Radius
Normally all damage from one hit will strike one item. Which item is hit is determined by comparing the size of each item with the total size of a position. Therefore having a lot of an items of a specific type, or having items with large surface areas will mean that they are more likely to be hit by incoming damage. If the damage applied to the item is lower than the defence of the item, it has a chance of being destroyed percentage of damage received - if more damage is applied to the item than its defence value it is automatically destroyed. Should excess damage exist, the remaining damage is treated as splash damage.

To calculate how much damage is carried over and used to damage other items, the excess is multiplied by the blast radius and this number is then multiplied by a value derived from the spread of the target. A ship is always considered to be packed, i.e. within a small volume, while a ground party may be distributed over a varying area and can have any spread from packed through to disperse (Note, each spread description covers a range of values). This damage is then applied to other items. This may in turn also result in overkill and result in further carryover splash damage until there is no damage remaining from the hit.

Highly penetrating weaponry generally has a low blast radius. The theory being that they focus their blast on a very small area. Exceptions to this general rule exist but they are unusual or restricted technology.

Weapons with nuclear capability will deliver orders of magnitude more damage when the target they hit is not surrounded by an ISR field. Generally speaking a world will have an ISR field providing that it has a base that has active command complexes or appropriate civilian technology. The ISR field will take 4 weeks to stabilise or decay and is incapable of dampening nuclear damage to positions not directly generating their own dampening field while unstable.
As a world with an ISR field and without an advanced population will indicate that there is at least one base on its surface, it is possible to turn of the base's contribution to the world ISR field.
The use of nuclear weapons against targets on populated worlds will have a negative effect on the population. Depending on the circumstances, expect GM Moderated implemented ramifications beyond the conflict zone including though not limited to the immediate closure of merchandising complexes belonging to the faction responsible and their allies due to intense civilian displeasure and fear of retaliation.
The nuclear wars that killed hundreds of millions in the Stellar Empire's civil wars are still fresh in memories of the survivors (as centenarians are not uncommon). The Tau-Ceti Agreement banning their use on civilized worlds still holds, at least nobody has yet torn up the agreement.

Use of Nuclear (WoMD) Weapons
Affiliation profile setting will determine if WoMD will be launched in a battle.
The profile settinss are:

• Nowhere
  
• Space
  
• Dead Worlds (include stargates, wormholes and other celestial bodies along with their surrounding orbit)
  
• Populated Worlds (worlds and their orbits with registered sentient/native populations of at least 100,000 people)
  
• Anywhere
  

When a combat targeting option is taken there is an accuracy penalty applied to each weapon capable of a focused attack. This is in addition to losing the target size bonus. Where a hit occurs, the damage is routed into specific items. Excess damage, where an item is destroyed, is then applied to the position as per normal damage distribution. Where an attack missed, there is a second hit-check by the weapon without the targeting penalty but size is now included but base accuracy is no longer included (i.e. it may have hit if the penalty was not accounted for), representing missing the intended area but still potentially hitting the target. Should this succeed the damage is applied as per normal distribution.

Target Preference	Accuracy Modifier	Items Targeted
Structure	0	Bases: Complexes Platforms & Ships: Armour & Hulls
Disable	-1	Shields, Shield Generators, Scintillators, Engines (Thrust and Combat), Sensors & Targeting Computers
Weapons	-3	Launchers, Energy, Kinetics & Tractors Does not include fighter bays
Life	-9	Any Item with Life Flag Does not include A.I.'s

Without any form of defence a position will be destroyed very quickly. It is therefore imperative that some measure of defensive capability is accommodated in any position. Ships and platforms have their hulls as the last line of defence. Other positions however are not so fortunate. They have to rely on other factors.

Armour
Ships, as well as having their hulls to soak up damage can also prevent damage penetrating through the hull by incorporating armour in their construction. The amount of armour that can be fitted to a ship is based on the type of hull used in construction. The thickness of the armour is then dependent on the armour used and the amount used.

Hull Type	Maximum Armour thickness
	Ablative	Normal	Light
Heavy	120	80	60
Normal	60	40	30
Light	15	10	7.5
Xtra Light	7.5	5	3.75

Ablative armour
This is built from material that quickly decays when damaged. This swiftly absorbs energy that would normally be transferred through to the contents of the position, thus providing a thick line of defence. The primary drawback with this is that the absorption of the energy destroys the armour. So while it may be excellent to begin with, in a prolonged battle the protection offered by the armour will drop rapidly. Use this armour type for positions that do not expect to be in combat for long!

Armour Plate
The standard warship armour is armour plate. This is tough stuff and while it is not as thick as ablative armour, it will last much longer. This makes it suitable for long drawn-out conflicts.

Light Armour Plate
Note: While this is in fact a restricted item, requiring research before it can be produced, it is mentioned here for completeness.

The advantage of this armour is that while it is thin, it is very light. As the combat speed of a ship is based on the total mass of the ship and the quantity of engines supplying combat thrust factors, a ship with this armour type can have a much higher combat speed. The advantages of this are many. Primarily it means that attacks will have a lower chance of hitting and in the case of inaccurate weapons such as rail guns, this can be considerable. The second advantage is that having high combat speeds allows a ship to pin other targets rather than become locked themselves. This may mean the difference between being locked in combat until destruction, or getting away for repairs long before this occurs. The primary disadvantage is that the armour is not very thick so high accuracy weapons can be quite lethal to ships with this type of armour.

Other Armours
Other armours exist although these are not primarily designed for combat. Korondite armour and its ilk offer only marginal defence and are easily destroyed. They should not be seriously used as a combat aid - except for avoiding combat in the first place!

Shields
Shields are based on field theory and utilise regions of varying potential with fluctuating nodal points and artificial van Allan belts. These field lines channel energy in the same way that the magnetic field of the Earth channels dangerous stellar winds away from the surface. Once charged to maximum they slowly and naturally deplete although this is by a very small amount and is accounted for in the construction of shields. This allows the position to perform normal operations such as docking and making transactions without worry.

The only drawback is that when channeling large amounts of energy in a very short time - such as within combat the field is depleted much more rapidly than in normal operations. In these circumstances the shield unit cannot recharge the field. In order to have the field restored to full strength the ship needs to visit a maintenance complex, or install devices specifically designed to perform this operation.

A shield has three values; maximum factors, current factors and depth.

Maximum Factors
This is the value of the combined shields when fully charged. This is measured in factors. Each factor represents the ability to absorb 1 damage, i.e. a shield with a maximum of 400 factors can absorb 400 damage before being depleted.
Platform hulls due to their design have inherent shielding (+10% effective cargo as shields)

Current Factors
This is how many factors are present. If there is a drop in the quantity of installed shields, then this number will drop only if the new maximum factors are less than the current factors. This presumes that as large a field as possible will be maintained, allowing for the best shield possible. If there is an increase in the number of shields installed, the current factors will not increase. It is presumed that new shields are installed uncharged. If a ship undertakes a maintenance visit the shield factors will be automatically recharged to maximum. Ground parties cannot do this so must use shield generators (see below).

Shield Depth
The ability to prevent damage is a function of the shield depth. The depth is determined by the number of shield factors in the shielding field and the surface area covered by a shield. The surface area is itself dependent on position's total size modified by its spread. As a consequence, a dispersed position with the same number of factors as a packed position will have a much lower shield depth. In the case of ships, those built from heavier hulls are more compact. This means that even if they have the same number of hulls they will have smaller surface areas than ships constructed from the lighter hull types. As a consequence they will have greater shield depths for the same number of factors. This though is countered by the extra internal capacity of the lighter ships, i.e. the ability to carry more shields in the first place.

The last function contributing to shield depth is based on field theory itself. There is field strength fall off with increasing factors. As a consequence, doubling the shield factors will not double the shield depth. This relationship can be represented in graphical form.


The shield depth measures the maximum amount of damage that can be absorbed from a single hit suffered during combat. As this is the maximum damage that can be absorbed, it is more likely that only half the shield depth will be effective, i.e. a shield depth of 30 will absorb on average 15 damage per hit.

Each hit is treated individually. So by this, presuming there are enough shield factors, a shield is more likely to stop many hits, each of a small amount of damage than a single hit of a large amount of damage.

Shield factors and therefore depth is not reduced unless the defenses are penetrated (i.e. the damage reaches items) and keep exisitng shield depth equations for starbases and platforms.

Damage done to shields are shown on battle reports in (shield bracket).

Shield Generators
In order to recharge rapid depletion, a ship can install shield generators. These have a recharge value. The total recharge value for all the generators will be added to the shield factors at the start of each round of combat. During the course of the round of combat however there may well be a drop in the total shield factors, which will result in a drop in shield depth. As there are 4 rounds of combat in every day, during a day where there is no combat, shields will generate 4 times their recharge value in shield factors.

NB. Shield generators will never recharge shields beyond their maximum shield factors. Excess shield generators will be ignored. A ship designer should consider carefully the balance between shields and shield generators to best suit the ship's intended role.

Starbase Shields
A base (starbase and outposts) can construct starbase shield complexes. These augment the factors, depth and recharge of shields. The maximum potential is reached when 10% of the total complexes of the base are starbase shields. When activated (requiring 4 weeks), they will multiply factors and recharge by 5. They will also grant an extra shield depth of 200.
Having active starbase shields however prevents the use of naval weaponry, including the launch of fighters.

Planetary Shields
Planetary shields prevent anyone from landing* (and building hiports) unless they are on the Landing List** of the 'gate' platform. The planetary shields are only active when:

• Planetary Shields [Infrastructure] is installed on the planet.
  
• At least 1 starbase with starbases shield on the planet of the same AFF as the gate and controls the gate platform.
  
• An active gate platform is in orbit, with active deflector arrays at the start of the day (Any such platform will have a [Gate 3/4] designation).

• Each platform hull provides 10 inherent deflector factors
  
• Maximum Number of Deflector Arrays = sqrt (deflector factors/1000) rounded up or 8 which ever is smaller.
  
• Each deflector array has max hitpoints = Deflector factors (To kill a defector you need to do deflector factors + shield recharge in a round)
  
• Each deflector array charges from shield generators after shields are at maximum
  
• Each charged deflector array added +50 to shield thickness of platform
  
• Only one charged deflector array can be damaged in any one round. Any damage done to the array does not have to penetrate the shields.
  
• Platform shields and armour are only damaged after all deflector arrays are destroyed.
  
• Platforms will be proceeded by [x/y] on scans to represent the charged defector arrays. eg PLATFORM Happy Times (3433) [4/8]
  
• Damage done to deflectors is calculated before any other armours/scints/shields are applied.
  

When a ship leaves a combat zone it may be subject to a mini-battle with enemy positions present in the location. The mini-battle will occur at the time the position leaves the location, during the main run and will not be postponed until the end of the run (as it is the case with a full battle). Mini-battles rarely inflict more than modest damage.
The type of mini-battle is either Escaping Combat or Opportunity Fire. This will be reported in the notification.

Escaping Combat Mini-Battles
This will occur if the position leaving a battle is still being targeted by positions from the previous day. All targeting positions will open fire for a number of rounds based on the relative fleeing speed of the leaving position compared to the combat speed of the targeting position.

• 0-50% fleeing speed:targeting speed is 4 rounds
  
• 50-75% fleeing speed:targeting speed is 3 rounds
  
• 75-100% fleeing speed:targeting speed is 2 rounds
  
• 100%+ fleeing speed:targeting speed is 1 rounds

• If target is 3 times as fast as the attacker then it only gets 1 round of fire vs it but being faster does not reduce this to zero.
  
• Under the worse conditions ships leaving combat are hit by 4 rounds of combat.
  
• Leaving ships can not increase their dodge by manoeuvring.
  
• Ships that flee as part of space combat are not in a battle and therefore not subject to Escaping Combat mini-battles (This includes dump cargo and flee). They may however be subject to Opportunity Fire on the next day (see below).

Each round of combat will consist of a detail of the weapons fired and a breakdown of the damage.

Example:

Round 3: 21 Space Bombers
- 21 hits - 787 (160) [1050] damage

The damage breakdown is as follows: penetrating damage (damage absorbed by shields) [total damage delivered]

In the above scenario, of this total of 1050 damage, 160 was absorbed by shields, 103 damage is absorbed by armour and/or scintillators leaving 787 (1050-160-103) damage to hit home. This damage is then distributed amongst the internal items of the position.

When determining how much damage is absorbed by shields and armour, each hit is treated individually. Factors such as armour penetration and depth can mean that weak damages are totally absorbed. This can produce this sort of outcome:

Round 1: 70 Light Photon Guns
- 70 Hits - 6 (1244) [1750] damage

As each hit is dealt with individually, it can mean that more damage is delivered to a specific item than is required to destroy it. The excess damage may then be lost or may inflicted on another item depending on the nature of the target and the weapon. For example, enclosed spaces such as ships when hit by explosive weapons, have a greater chance for excess damage to be allocated to other items.

Heavy hulls and platform hulls also provide internal protection for items due to the increased use of internal bulkheads as part of their design (items get x3 defence which can be increased up to x4 through officer damage control training). This can mean that even penetrating damage may appear to be less effective against warships.

Ship Destruction
No hulls or armour will survive an integrity breakdown � but no cargo will be lost.
Ships will only be blown up when all hulls and internal items (not armour) are destroyed (this is not accounted for on the pre combat ISR checks).
If a ship is destroyed then it only receives a battle report if there are other ships there from the same squadron/affiliation/player.

Base Damage
Complexes are converted into either rubble or ruins when they are destroyed. Further damage incurred on ruins will convert them into rubble. Rubble can continue to absorb damage though will decay naturally over time, being removed from the base.
Bases with only rubble/ruins will be converted to derelict - taken from control and removed from combat.

Further Reading
The IGN article Everything you need to know about Damage gives a lot more detail on how damage is applied. It makes for some heavy reading.

To get out of a combat and move away when there is an enemy present:
Clear Target Lists
Successfully move somewhere else - you do have to change your location if this is going to work.

Issues:
If you are being targeted you will be drawn back into combat if you do not move away.

If you still have support, defend lists, shield position or return fire, if there is an ongoing battle, you will almost certainly be drawn back into battle if you do not move away.

If you have enemy lists and issue orders such as transactions, scans and in general orders that cost TU's you will have an enemy check and be pulled back into combat.

Even if you clear all lists (and targets), if you do not move away, you may be pulled into combat due to others targeting you from the previous day. In this case you will try to flee but may return fire depending on your flee and retarget settings.

If you want to hang around in the same location and get out of combat:
First of all, there are no guarantees this will work.
Clear targets, clear lists, set to flee, set to ignore incoming fire. This will put your ship into a spin ignoring any kicking it is getting and trying to get away.
Pray to your chosen deity that the opposition has done something similar or that you are faster.

Yank - who is to blame
If you wandered in there with enemy lists and caused a fight - the system weapon will open fire on you (even if you are getting a kicking anyway). If the battle continues the next day, you will be shot again even if you no longer have enemy lists (how does the KAS know you have changed tactics?). Basically, if you cock-up, clear target and enemy and move away.
The reason you are dropping enemy list in this case is because you don't want to start a fight in another location.

Where a combat lasts for 4 rounds all participating ships suffer integrity loss (as per a standard weekly drop). If a battle continues over multiple days, all participating ships will suffer the loss on a daily basis. Combat stress is reported in the battle manifest.

Integrity Losses for Ship Type
Heavy Hull - 1 week
Normal Hull - 4 weeks
Light Hull - 1 week
Xlight Hull - 1 week

Target Lists
Anything can be added to your enemy/support/defend lists providing you have a naval officer. When you scan a ship the enemy lists are checked vs system/relation to see if they are valid enemies are your location and a battle is started if you spot a valid enemy.

Inside each battle target lists are created to decide which ships to attack. This is done as follows
[1] The enemy target list is created from your enemy list checked vs system/relations to form a list of all your valid targets.
[2] The support target list is created from the enemy target lists^[1] of all the affiliations/positions you support. You can only support allies.
[3] The defend target list is created by looking at all the positions you are defending and checking the enemy target lists^[1] and support target lists^[2] of positions that have them as targets.

The target lists will be printed on every position after a battle to avoid confusion over what happened.
e.g.

ENEMY TARGETS	SUPPORT TARGETS	DEFEND TARGETS
AFF X	AFF Y*	None
Position X

There is a * next to any entry then it is derived from supporting/defending another aff (not your own). This allows some level of understanding what is happening.

Example
At a location in Yank (core system) we have:
-IND Victim
-PIR Attacker has IND on its enemy list .
-KAS Rescue has Everyone on its defend list
-PIR Helper has PIR on its support list.

KAS is assumed to be friendly to IND for this example so it can defend it. The battle is in a core system but the PIRs can attack there so all the enemies are valid.

PIR Attacker gets this target list (ie it attacks via enemies)

ENEMY TARGETS	SUPPORT TARGETS	DEFEND TARGETS
IND	None	None

KAS Rescue gets this target list (ie it attacks via defence)

ENEMY TARGETS	SUPPORT TARGETS	DEFEND TARGETS
None	None	PIR

PIR Helper gets this target list (ie it attacks vis support)

ENEMY TARGETS	SUPPORT TARGETS	DEFEND TARGETS
None	IND	None

IND Victim has no target lists and can only return fire.

Supporting / Defending
As there are two levels of support/defend, a specific position and the entire affiliation, the two levels of treated differently.
Where a specific position is being supported, its enemy list is carried over to target lists of the supporting positions.
Where a specific position is being defended, individual positions attacking the defended position are carried over to target lists of the supporting positions.
Where an affiliation is being supported, only the affiliations appearing on their enemy lists are carried over to the target lists of the supporting positions.
Where an affiliation is being defended, the affiliations (not individual positions) attacking the defended positions are carried over to the target lists of the defending positions.

e.g. for Support:
If you are IND and support IND, if an IND position specifically targets position Y, the enemy will not carry over. If you are IND and support position X, if X targets position Y then Y will be taken as an enemy.

e.g. for defend:
If you are IND and defend IND, if position Y targets position X (IND) then the Aff(Y) will be added as an enemy. If you defend position X (IND) then if position Y targets position X (IND) then position Y will be added as an enemy.

This is subtle but necessary to avoid individual targets becoming swamped.

Order of Targeting
The target lists are used in this order, using the appropriate target list for following

[1] Returning fire
[2] Position is on our enemy list
[3] Position is on our posted list
[4] Affiliation are on our enemy list
[5] Position is on another posted list
[6] Defending Own Aff Position
[7] Defending Friendly Aff Position
[8] Supporting Own Aff Position
[9] Supporting Position from Allied Aff
[10] Defending Own Aff
[11] Defending Friendly Aff
[12] Supporting Own Aff
[13] Supporting Allied Aff

Screening is the tactic of using one or more ships to intercept incoming fire against another during combat. There is only one restriction, the screening ship must be as fast if not faster than the screened ship. Where the screening ship is faster, its speed is reduced to that of the screened ship.

This tactic works where the screened ship is inherently tough and has a good dodge where the dodge is the product of a captain and inertial damping. Other considerations for a screening ship are that they are disposable where the screened ship is very valuable and the screening ships have dedicated a large amount of its install space to defenses such as shielding and point defense.

Screen ship does not intercept boarding actions and will not intercept attacks directed at a boarding ship.

Screening a position requires the ship to remain in combat. If no valid targets exist and the target is not engaged, the screening ship will leave combat and once left will not re-enter even if the target is later engaged. All other combat considerations need accounting for, such as naval officer, not fleeing etc to ensure the screening ship remains in combat.

A ship can only screen one specific ship which is set using the screen ship order though multiple ships can be used to screen the same ship. To screen a new target, submit the order again for the new ship while submitting the new target as zero removes screening.

Example
The ship being screened by multiple ships will have a battle report like this:
Code:

----------------------------ABC SHIP Bacche (218)----------------------------

Shields: 19500[70.8]
Scint Coverage: 50
Armour protection: 105
Target Type: Disable

ABC Gunboat 22 (9215) screened an attack from PIR Nik (205).
ABC Gunboat 15 (13463) screened an attack from PIR Tally Ho (7285).
ABC Gunboat 2 (59804) screened an attack from PIR Allen (9714).
ABC Gunboat 3 (7548) screened an attack from PIR Tally Ho (7285).

------------------------PIR SHIP Nik (205)-------------------------

Shields are down
Armour protection: 118.4
ENEMY TARGETS             SUPPORT TARGETS           DEFEND TARGETS
Bacce (218)           None                      None

Attempting to Target ABC Bacce (218):
    Position is on our enemy list.
    ABC Gunboat 22 (9215) screened our attack and was targeted

Broadsword with missile launcher(205) - 6 ACC and 10 Targeting Computer (107) - 3.1 ACC bonus, firing at another broadsword with 1.25 dodge
Profile of a 75HH is 2.5 - from Game -> Position Editor
So:
+3 for basic to hit
+2.5 for Profile of other ship
+3.1 Acc Bonus
+6 Missiles
-1.25 Dodge of other ship
---
‭13.35‬

Round to nearest => 13 Acc

If 3d6-3 is less than Acc then we have a hit. So less than 13 = hit which occurs 95% of the time

List Acc vs % chance to hit (on average) :

0, 1,  2,  3,  4,  5,   6,   7,   8,   9,   10,  11,  12,  13,  14,  15,  16
0, 1%, 2%, 5%, 9%, 16%, 26%, 38%, 50%, 63%, 74%, 84%, 91%, 95%, 98%, 99%, 100%