Remove SNAC, but make bomber cannons into weapons that can actually do something, so instead of having 4 peashooters and a big sniping weapon, make bomber guns the main battering ram on bombers.
Nerf GB turrets slightly, change their refire to 3.03, lower projectile speed, and slow down turret rotation speed so it's a bit harder to hit snubs with them, therefore giving GB Solaris a purpose. Also, nerf GB shields, buff hull.
Buff moneymaking, this is a game, not a second job.