History

Havok using his powers against Uriel
During the Apocalypse Twins' adolescence, Kang the Conqueror brought them from concentration camps to his palace in the year 4145 AD.
They were dispatched on a mission to murder Colonel America. The Apocalypse Twins' mission ended up failing but they succeeded in killing Havok and Rogue as the first lives they ever took.
As punishment for their failure, Kang promptly sent the Twins back to the concentration camps.[1]