Ah, the problem here is that since they have to dedicate their power and such to Capital Industrial systems, I doubt they'd be used as warships. I'm not so inclined to have a mass increase, mainly because the primary function of a Capital Industrial would be civilian and support, and thus would warrant more specialization into the industrial systems, rather trying to fit weaponry. Because of this, it'd need to be able to move at a relatively decent pace, to keep it's versatility.
Alright, will add that in.
Again, I can see this thing going into combat, but only for the sake of fleet support. Again, it's going to need to dedicate a lot of it's power and such towards the industrial/support systems, which would all excel without weaponry taking up that space/power. Thus, there's already an incentive to not have guns on them.
o/