My math isn't adding up:
Siege engine dps=
Base: 30k * 16 ship cap / 10 second reload = 48k ship cap base dps***
480k base dps * 5 multipliers = 240k specialized dps
Fighter dps:
Base: 4080 * 96 ship cap / 4 second reload = 97,920 dps
97920 * 6 multipliers = 587k specialized dps
***I used the standard dps formula of raw damage / reload speed for dps here, but the siege engine actually doesn't follow that rule. Since it has to reload before it fires the first shot, its dps is actually significantly less at the start of a fight.
I think the weakened dps is to the tune of:
(xn - n) / n where x is the number of 10 second intervals, rounded down, and n being the dps of the craft. (I'm sure I botched this number).
To use words: If a fight lasts 25 seconds, then a attacking siege gun fires twice, but a missile frigate fires three times. This is because all craft but the siege gun gets an opening salvo, but the siege gun does not.
This is not to even begin that right now in my game the siege engine does less damage then the fighter
by less then half.