GC First Lieutenant

[aesteval]

I haven't figured out how you even get your fourth member to join your squadron, let alone ranking them up.

They have a chance of showing up when you complete challenge log items.

[Syrellaris]

Well i have a squad of 8, which is teh most you can have atm.
You can do 3 training missions at the same time as 1 normal mission(1h vs 18h)

[Zumi]

They have a chance of showing up when you complete challenge log items.

This is so rng based I have not get a 4th member and I finished like 8 things on the challenge log.