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The Mechanical skills of the personnel in each group is sorted in descending order and the two highest values are combined. There are then five rounds (6 if a Hull Polarising Device is present) of hull cutting which during which if the target shield reaches over the maximum shield percentage all boarding personnel are instantly eliminated. Should the effective Mechanical Skill be below the effective hull resistance the group of marines will be ejected back into space. If the effective mechanical skill is higher than the effective hull resistance then the group of personnel enter the target ship and begin fighting.
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Possible casualties on both sides are then calculated between the first and second audio played for the deck (means save before this point). The number of potential of possible casualties are then scaled according to how big the difference between Boarding Strength and Boarding Resistance is before playing roulette as to who dies from the player personnel. If Boarding Resistance - Boarding Strength is ≤ 40, then there is an additional 2% chance to adjust Attacker possible Casualties by +1 and Defender Possible Casualties by -1.
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| Boarding Resistance - Boarding Strength | Possible Casualties Scaling | |
|---|---|---|
| Attacker | Defender | |
| <550>550 | N*3 | 0 |
| 401-550 | N*3 | N-3 |
| 151-400 | N+(N+1)/2 | N-(N+1)/2 |
| 41-150 | N+1 | N-1 |
| (-40)-40 | N | N |
| (-150)-(-41) | N-1 | N+1 |
| (-400)-(-151) | N-(N+1)/2 | N+(N+1)/2 |
| (-550)-(-401) | N-3 | N*2 |
| <(-550) | 0 | N*3 |
Attacker actual casualties are determined by going through all living attacker personnel using the formula 10%-((Fighting Skill-1)/10), adding them to a group if chosen and randomly killing the unlucky one of the group. The process is then repeated for every possible casualty number of times this process occurs is the number of possible casualties. This means personnel with a high Fighting Skill have a decent chance that none will be picked for the elimination group. Defender actual casualties is the same as the possible casualties.
After the final deck there is a battle for the Bridge bridge using slightly modified formulas.
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Hacking The Computer Core
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Despite all the audio played during the hacking process there are only three stages that count. If Hacking Strength ≥ Hacking Resistance then hacking proceeds to stage two. If Hacking Strength < Hacking Resistance there is a 2% chance of hacking proceeding to stage two, otherwise the boarding fails and all boarding personnel are ejected into space.
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When ownership of the target ship is transferred, 90% of equipped lasers, missiles and shields are destroyed. Kyon Emitter type lasers only have a 50% chance of destruction. Of the remaining equipment and wares in the cargobay the amount kept is determined by two sequential number generators. Stations in the cargobay of TLs are exempted and always kept.
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