Jackson McMillan, is a retired MARSOC raider turned PMC contractor. After serving 10 years in the Marines, he found it difficult to absolve back into civilian life, so turned to private military contacting. Becoming one of the best field contractors in his company, he was placed in charge of a small group of contractors. He and his group ended up in Chernarus after the outbreak had already began, tasked with protecting local officials and other VIPs. Only when they arrived, the outbreak had already overran the military and killed all the VIPs that hadn't fled the area. So now, his detachment of contractors was left stranded in a foreign land, with only the gear in their rucksacks.