There are two keycard levels that you need though, and the game is not very descriptive of them. The protection the firefighter outfit provides you on the outside allows you to just run past the enemies on the outside. The Firefighter prep is easier to complete, especially as 1 player, and the firefighter outfit actually provides you with protection on the outside too, which the Noose outfit does not do.
It's a bit unfortunate if you're going for elite challenge, but it's an option to be able to use the exit disguises.Īlso, I always recommend the Firefighter exit disguise over the Noose disguise. Usually if you do a quick restart (setting you back outside the vault after having looted) it will typically fix the exit disguise, and they should show properly and be able to be used after the quick restart.
I have not quite figured out what causes this to occur though. I have noticed that the exit disguise can sometimes bug on a run, and the icon will not show up on the minimap, preventing you from grabbing them even if you go directly to where they normally are.