"I need a qualified assassin to find (Charles Xavier) and kill him before he converts any other young mutants to his naive, integrationist ideals. Tell Wolverine he has a new assignment." - Magneto

Ultimate X-Men Origins | Ultimate Logan's History

Real name: Logan

Occupation: Assassin

Identity: Secret

Group affiliation: Brotherhood of Mutants

Base of operations: Savage Land

Height: 6'1"

Weight: 195 lbs.

Eyes: Black

Hair: Black

One of Magneto's operatives and a product of the mysterious Weapon X project, Wolverine is a trained assassin. Somehow, his skeletal structure and mutant bone claws were laced with the unbreakable metal known as adamantium, forging an unstoppable killing machine. This also makes him a valued soldier of Magneto's Brotherhood of Mutants -- terrorists operating under the assumption that Homo superior represent the next step in human evolution, and that Homo sapiens should live under the rule of mutants.

Little is known about Wolverine or his past, save that he is the best there is at what he does. And what he does is kill.

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Weapon X is SHIELD's premier counter-terrorism division.

Logan worked under the Weapon X program, headed by Col. John Wraith. Dr Cornelius is also on staff.

In those days, Wraith used to repeatedly shoot Logan for amusement and then watch the healing factor kick in. Wraith knew that Logan’s mind was wiped. (Ultimate X-Men #2, 7)

Two years ago, Wolverine escaped from Weapon X's Canadian facility. Since then, Weapon X has had 3 reallocations in as many months, and 6 different addresses. (Ultimate X-Men #7)

Other mutants of Weapon X are Nightcrawler (Kurt Wagner), Rogue, and Sabretooth (Victor Creed). Recently, Kurt attempted to escape 2 months ater ntry of the project, but was re-captured by Wraith.