At eight years old Miller's mother and father got killed in an electrical fire that happened after Miller left a piece of electrical equipment on that he was working on fixing. This lit a nearby curtain on fire burning the house down to the ground. After the fire Miller (being an only child with no relatives willing to take him) was bounced around from home to home until he turned 18. Miller was never the same after the fire and during his time in the State's care Miller never could forgive himself for what he'd done. After Miller turned 18 he went to University for 2 years and dropped out saying "It wasn't for [him]." He then soon enlisted in the US Military as a Marine where he stayed until he was honorably discharged after taking two 7.62x39mm rounds to the gut in Iraq, and one 9x19mm round to the lung which almost killed him. Just before the outbreak Peyton Miller was in the Czech Republic visiting an old friend from University back in the United States. After the outbreak occurred Peyton's friend died saving Peyton's life from an infected individual. Miller then put two round in his friend's skull after he turned. Peyton eventually found himself in Chernarus after several days of trekking and decided the area was safer than other surrounding areas.