I agree with the tower area solution. Tower should be more all-purpose like The Citadel in Mass Effect. An area to meet up with other raiders and also a firing range to test weapons you've gotten would be a good start. (Why not test the weapon in-game? Well, because you lose ammunition that way. Switch launchers and you go from 5 or 6 rounds down to 2 in, with none in reserve. Then fire one off to test it, and now you're down to 1. Whereas I could have just gone to the Vanguard Armory, walked in the firing range and tested all my new gear, with no penalty to my ammo... Especially before a high level mission with a bunch of bullet sponges, lol)