Cyno Alt Please Ignore

Missile Launcher Operation - increases rof
Missile Projection - increases velocity
Rapid Launch - increases rof
Target Navigation Prediction - reduces the effect of targets velocity
Warhead Upgrades - increases dmg
Torpedoes - increases dmg
Torpedo Specialization - allows t2 and increases dmg for t2
Indirectly:

Weapon Upgrades - Allows BCU's, reduces CPU requirements
Advanced Weapon Upgrades - reduces PG requirements