I have an idea for some weapons and parts that could be added.
Incendiary Round Simple Cannon- A cannon that uses a incendiary round instead of a norm round. Could be useful against thick armor.
Detach Scaffolding and Ship doors- Parts that could be used in a Carrier of some sort. Useful for sending in Reinforcements.
Emp Blast- Could be used as a way to disable Shields and Reactors for a period of time. Could be useful against Big ships.