How do you repair them? And how do I get the other options like I see in most videos like the Armaments, etc.?
So I bought a Railjack, played a few missions with my friends and found that you get some weapons and shields when you complete said missions. Yet when I go to equip them, the only available "upgrades" are the Plexus and Intrinsics. I know that to change weapons and such you use Armaments, but it isn't here. Do I have to do a certain mission to unlock the stuff or what?