Someone told Rahn he wasn't badass enough. After crushing the person's head, Rahn contemplated life and fell into a deep depression that lasted 20 years. When he snapped awake, Aliens (Foehn) have invaded the Earth. So, to prove he was indeed 'badass' Rahn signed on with the resistance to kill some shit.
Edited by NorthFireZ, 29 June 2017 - 07:41 PM.