Location: The King's School of Impersonation, Freeside. Type: Non-Humanoid (Cyberdog). Specialty: Melee. Companion Perk: Search and Mark (Highlights chems, ammunition, and weapons on your compass). Personal Quest: 'Nothin' But a Hound Dog'. Strategy: Rex is the King's cyberdog. His perk is excellent for scavenging and finding valuable loot. He's a strong melee companion. His personal quest involves finding him a new brain to improve his cognitive functions.
Fallout: New Vegas
Rex
Find Rex, the King's cyberdog, in Freeside for Fallout: New Vegas. Utilize his melee skills and the Search and Mark perk for better scavenging.