I think putting cores into your ships would be quite interesting.
Gamma: Number-cruncher. Improves efficiency in ships in a variety of ways. Increases fuel efficiency, gives you better targeting (leading pip?!), maybe gives you slight speed boost, etc. Very small chance of going rogue but considered illegal so authorities will confiscate the ship and you'll get a major rep hit.
Beta: In lieu of an officer, you can use a Beta. Has fixed (random) skills that can't be improved upon but has an overall higher level than any officer (say level 25). Has a small chance (~5%) of going rogue mid-battle. If it does, it will fight against you and/or try to escape. Even more illegal than gamma.
Alpha: Super-officer if installed. Like the Beta, fixed skills that can't be improved but level 40. Also gives huge boosts to non-armor/hull stats of ship. Trump card, albeit dangerous to use. ~20% chance of going rogue in any particular fight. Getting caught with one of these is instant-hostility with a faction.
Alpha+: Mentioned in lore. Only a few in the sector. Can't be installed on a ship but has [plot] purposes and while its in your possession, your whole fleet gets huge stat boosts. Manipulates everything you see/contact with. Will blind you to large enemies, make you chase after ghosts (non-existent bounties/distress calls, tips toward riches, etc.), give missions that are traps. It's the One Ring that wants to be found by a dark master.