I have some suggestions for you.
Inferno Cannon
Behaves similar to the Vanilla cannons but they fires incendiary shells that have low penetration, below average damage to shields and armor yet has a higher chance to cause fire to nearby corridors/rooms when impacted.
Who doesn't love the smell of burning reactors in the morning?
Torpedo
Well not much to say about this beside that they deal more damage, but maybe they could be slightly longer and slimmer then vanilla missile launchers.
Eradicator Capital Cannon
BIG BOOM BOOM!
A powerful weapon that basically fires mini nuclear reactors at ships. Armor piercing projectiles that upon reaching it's target will unleash a large explosion, It however has a limited arc of fire and it would need a special ammo factory that will produce this shell at a sluggish rate. due to its slow productions of the shells, shields would be effective on nullifying a single shot.
Hell-fire Mass Driver
Behaves similar to Mass Drivers however the weapon consumes more energy, cause fires to nearby blocks on it destructive warpath. But because some energy is dedicated to heating the slug, it will have lower penetration.
Words of the day : MOAR DAKKA!
