Any way to have a ship cycle its weapons/targets?

[Shadowstar]

What I did in SE4 Starscape was make it so that the larger ship sizes would increase accuracy, while smaller ships would have lower accuracy. This could work here as well. I like the idea of making larger mounts increase firing rate instead of damage but it doesn't seem very realistic, unless you say that instead of making the weapon bigger they just add more "barrels" in a kind of howitzer or chaingun mechanic.