And feral ghouls that attack the vault!
Also, perhaps using endurance points in the storage rooms that can create upgraded weapons and outfits. That'd be fun and more interactive.
Just throwing out some late night ideas.
I like the idea of the endurance room.
Maybe not to create super upgraded versions, especially of armor, that'd just be broken. To make the legendary version of wasteland gear from the common materials? What would be the point of exploring for rares then?
But to take the rusty status off equipped weapons would be awesome. It wouldn't make the weapons any less rare it would just let you make them slightly more useful. Perhaps if the room was upgraded you could take it up 1 tier of what it was obtained at. 2 if fully upgraded. Which would still make it attractive to find rare at higher tiers and be able to upgrade them even farther.