In an alternate AoA timeline, from What If?: Age of Apocalypse, Captain Britain is a member of the Defenders (their version of the Avengers), and uses Iron Man 's armor. In this timeline, Legion kills both Professor Xavier and Magneto, therefore the X-Men never existed, so mankind's only hope lies with the Defenders. The other Defender members are Weapon X, the Thing (using a metal prosthetic arm), X-Man, Colossus, Brother Voodoo, Molecule Man, and Sauron, led by Captain America (who wields Thor 's hammer, Mjolnir). During the final offensive against Apocalypse, Captain Britain loses his life fighting the Hulk (one of Apocalypse's Horsemen in this reality), who rips Britain's body apart.