Do capital ship turrets DO anything?
I managed to shoot down a fighter once with the machine-gun-like turret. Aside from that, they seem pretty much useless, especially the heavy beam turrets that shoot the single death-star-like beam. Those things do basically nothing.
Plus, the range on them doesn't seem long enough to hit other ships and if they do hit, they sure don't seem to be doing any damage. IE: you can't hurt a frigate with the entire firepower of a cruiser.