[Yef]

The problem with capital ships shooting at fighters, is that the AI always shoot to whatever is closer, so it waste all its shots on fighters that cna rarely be hit because of the size bonuses.
That's why I believe ship weaponry should not be capable of shooting at fighters at all. Only PD cannons and/or missiles should.

The AI behaves like a WW2 battleship prefering to fire its 14 inch guns at a fighter flying close-by than at the big enenmy battleship half a mile away.