Your friendly robot dog needs a new brain in Fallout: New Vegas. Which is the best choice for him?
Fallout: New Vegas has a colorful cast of recruitable companions you can travel with. Each of them have their own sidequests that change their endings and reward you with new perks. Unlike Dogmeat in other Fallout games, Rex is a mysterious cyberdog you can travel with.
He comes with the Search and Mark perk. This highlights lootable objects with a green light when aiming down your sights. Rex is acting strangely when you first bring him into your party. Complete the Nothin’ but a Hound Dog quest to give him a new brain. This guide will explain what each brain will do to him and help you make your choice. Nothin’ But a Hound Dog
You can speak to the King in Freeside to learn about his dog Rex. You need to help the King and his followers up to the G.
