How do you get all the gear?

[BOG]

How is Challenger 100-150 in terms of Blueprint drops? I’m currrently running SoT and get like 2 blueprints every three runs or so.

It depends number of blueprints left to learn.
Essentially, you get several blueprints per run, BUT! If you “get” one you already know, it wont drop, and you get “nothing”. So, the more you know, the less you get per run.
Challenger 100-150 drops more blueprients in average, than campain content (actually, only Nemesises drop decent number of blueprients, but finding them is pain in ass).
But if course, Gladiator 100-150 drops much more.