Gunnar Tillman was born in Burbank, California, and rode with the Vagos Motorcycle Club in their Southern Californian chapter within his early twenties. Gunnar was born into a divorced household with an older brother and no other siblings. He had started out as a prospect without a loki rocker in the center of his cut, and had immediate family in the club. Tillman worked as a mechanic in the clubs' garage most weekdays, and spending every other weekends with his daughter. Gunnar had stayed single after getting his girlfriend pregnant at nineteen. In his early twenties, after being patched into the club, he had admitted himself into the U.S Military to find more solidarity in his life.
As the outbreak flourished in Chernarus, Tillman was posted up in a safehouse with his fellow soldiers in Iraq, barely touching the border of Syria. Since the outbreak, Gunnar has fled to the Ukraine with many other non-english speaking parties in exchanges for supplies or arms. Eventually, landing himself in Chernarus by following signs he was unable to read, believing it would take him to a southern coast. Gunnar had crossed the border to get inside via paying his way through via corruption within the borders patrol during late hours of the night.