Legion mongrel

s are attack dogs used by the Caesar's Legion.

About
Legion Mongrels are the dogs owned by Caesar's Legion and used in combat and scouting missions by them. The current mother of the mongrels is Lupa. They are of a distinctly different breed than all other dogs in the game, resembling German Shepherds.You also can kill him to get a brain for rex.

Appearances
Legion Mongrels appear in Fallout: New Vegas.

Bugs

 * Legion mongrels and NCR guard dogs may still attack the player despite their disguise, if they are hated enough by the associated faction.

Glitch
If you travel to Nipton wearing a NCR wrap armor on make sure to head out were the mongrels can't see you, kill all of the legion and when you return all that is left there is mongrels inhabiting the town.