[@Viscerous]

Possible in the games, maybe. But this isn't the games. From a realistic standpoint that'd be like trying to strangle a tiger with your bare hands. 

The problem with the hat is that you can't get away with mentioning fedora on the internet without immediately thinking of neckbearded trilby-wearing land whales chanting 'm'lady' up and down the streets. But whatever floats your boat.

[@DirtyDingo]

A Vault-Hunter is a self-explanatory group of characters from Borderlands, most of which are the playable characters from the first two games. The word itself doesn't belong. Wasteland 'prospectors' fit the role that you describe.

'Vault Prospector' would be fitting.