To recruit her as a companion, you will need to complete the quest 'I Could Make You Care'. Veronica Santangelo: She can be found at the 188 Trading Post. Depending on the outcome, she will give you two different perks in addition to her base perk.

To recruit her as a full companion, you must complete 'Heartache by the Number'. Rose of Sharon Cassidy: She can be found in the NCR Barracks at the Mojave Outpost. Rex can be used as a companion without completing 'Nothin' but a Hound Dog', but he will not give you any perks. Blues' and 'Nothin' but a Hound Dog' to unlock him as a 'full' companion. You will need to complete the quest 'Crazy, Crazy, Crazy' to recruit him. Raul Tejada: He can be found in Black Mountain.

You must complete the quest 'Guess Who I Saw Today' to unlock her. Lily Bowen: A mutant who can be found in Jacobstown. This requires passing a Repair check of 65, a Science check of 55 and a Repair check of only 35, or by finding three scrap metals, two sensor modules, and scrap electronics. To unlock him as a companion, you will need to repair him. ED-E: He can be found in the Nash Residence in Primm. You will need to complete 'One for My Baby' to unlock him as a companion. Craig Boone: He can be found in Novac on the top of the Dinky the T-Rex at night.

If you have positive rep with Caesar's Legion, he will not join you under any circumstances. In order to recruit him, you will need to have or do one of the following: High rep with the Followers, completed the 'High Times' quest, Speech 75, the Confirmed Bachelor perk, or Intelligence of 3 or lower. Arcade Gannon: He can be found in the Old Mormon Fort in Freeside. You will need to hire and travel with the following companions in one playthrough: In order to get this achievement, you need to convince every companion in Fallout: New Vegas to accompany you.

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