it would also be possible to give capships a general big boost and exaggerate their weapons arcs more. for example, some ships can have a lot of front batteries, others side weapons and still others have good allround cover. I know, it is already, but as I said, it could be more pronounced.
to give a short example, a long time ago, still in the beta testing, we did some playing of for example a kol vs a marza. result was that unmanaged, the marza would beat the kol handily. if, however, the kol went into maneuvering and exploited the marza's extremely narrow firing arc, it could prevail.
my point is not that I want capships to do this kind of stuff, but that in order to take them down without exceding cost you would have to use your frigates such to exploit these weak points. so, effectively, the changed gameplay would be that if you did attack it from a weak angle, split your fleet and such, you kill it and make it a numeric win, but if you attack it at its strong area, even a large frigate force would take heavy losses.
in order for this to work a few things would proably have to change:
1) turn rate should be decreased, OR, frigates could get a flight pattern that is more similar to fighters, ie. the fly around and make passes at enemy ships. either way, the result needs to be that the direction from which you attack should make a difference for some time and not only for the few seconds it needs to capship to turn around for its favourite angle.
2)weapon damage probably needs to change too. if it takes just 10 - 15 seconds to kill off a fully health cap ship, then the 60 seconds or whatever it takes to kill a frigate ( or more via abilities) are too much. I'd rather go via the "it lives longer", but more weapons to attack many more targets at the same time would be nice, even at a single side. would be nice if the kol had not one autocannon to attack one frigate at its side, but several.
3) maybe the capships can profit from a shield split, as it sometimes happens in tactical simulators. after all you might not have more than a few of them in any given battle, so the time may be there to make adjustment here and there. sort of like front, aft, board and starboard shields and being able to down them seperately. that could make them more vulnerable at some points and less so at others. there could be an option to transfer power, but it would work only after a short while and greatly drain the others.
in sum, this could make capship role fairly diverse. some could be heavy hitters that are really strong vs. structures, capital ships, planets and such. others are better vs cruisers and still others vs the lighter frigates. guess it is already in somehow already, but maybe not extreme enough.
clearly, this would be something very long-term. maybe it is also just nonsense, but I just thought "hey, why not make much stronger, but very suceptible to some tactics instead of just some ships or just swarms of any ship".