Devon is a twenty four year old veteran who served for the United States Marine Corps during the Chernarus Civil War. After being discharged due to injuries sustained in the battle of Chernogorsk, Devon took up a life as a world traveling self employed truck driver. While on a routine delivery passing through Eastern Chernarus, Devon's truck was stopped at a military checkpoint where he was taken prisoner for reasons not explained to him, and transfered to the South Chernarus prison Island. Devon could see the the distant fires of Chernogorsk from his cell, and the constant state of panic from the guards told him that something was terribly wrong. When the infection spread to the Island and all hell broke loose, Devon and two other prisoners escaped captivity and swam to shore where they retreated inland to seek shelter. With both of his comrades dying from hypothermia they contracted from the freezing waters of the Bay Of Chernarus, Devon Rainer is left alone to survive, left only with the hope that his wife, Lisa is alive back home.