What are the bonus for each defector mission?

I played a heat signature a bit and liberated and completed the defector missions of 2 stations. Defector #001 and #002. The first one allowed me to buy sidewinders, and the #002 said something about money.

What are the unlocks for each defector mission?

The missions themselves unlock the characters you play as, with their unique gear etc. For example, if you complete a defector mission and the defector starts with a gun and armour-piercing sword, he will become playable when you start with a new agent, along with his gear. They also have their own independent story missions.

The wiki is a little barren but incases it becomes more full you can find the reference here:

Defectors - Heat signature wiki