He and Paladin McCarthy are standing guard outside a Brotherhood bunker that the Warrior cannot gain access to, regardless of current rank and use of lock picks or the electronic lock pick. There are a number of dead civilians around the bunker's entrance that the duo have killed because they were trying to gain access to the bunker.
Except for some after battle quotes there is no verbal interactions. When attacked he will take turns with McCarthy firing his minigun at the Warrior and his party.
