Tras

"Tras is causing a distraction!" - Carn telling the party what Tras is doing

Along with Carn, Tras was a rare Survivor that wasn't a total bitch and decided to join the party in their assault on the Collector's base.

He was last seen departing a hallway in the Collector's base where the party was hiding en route to causing a distraction. Apparently he blew some shit up.