Lewis's infatuation with fire began in his childhood. Later in life, he had the opportunity to join Raynor's Raiders and fight for the future of the Terran Dominion. He hesitated, but when he learned he could become a firebat, that sealed the deal. His tendency for pyromania earned him the nickname "Blaze."After the fall of Arcturus Mengsk, Lewis joined the Dominion Armed Forces. He heard of the disappearance of Jim Raynor after the End War, and wondered what happened to his former commander.
Firebats are "armored assault troopers," often attached to provide support for marine squads. Particularly devastating in close quarters combat, they're typically armed with dual arm-mounted flame throwers and wear heat-resistant fireproof armor similar to those used by marines, although heavier.