While his brother chose the military life, Sam was cut from a different cloth. After an alcohol-fueled altercation in college, he was forced to give up on becoming a a trauma surgeon. Sam didn't let that stop him, though; working two jobs over the course of several years, he received his credentials as an emergency paramedic and subsequently joined the Sons of Earth foreign aid group, travelling to dangerous locations around the world to help provide supplies and medical care to refugees and natural disaster victims. Acting as an emergency paramedic, Sam had the outstanding misfortune of being in southern Russia when the apocalypse hit. The UN was quick to draft his services once the Chernarus situation began devolving out of control, and Sam was eager to help.
It turned out to be even less fun than he was expecting. Two weeks into the operation, Sam was on a roving patrol in a large-ish city when the infected attacked in numbers. Separated from his group-