Marcus Kirk is a character that grew up in a military family. Before the outbreak, Marcus was an assistant on a crew ship that smuggled people around the globe. Marcus Kirk had just finished smuggling a group of immigrants into Chernarus, normally he stays a day or two in the country he just entered, then leaves. After a couple of days, his captain said it was time to leave, for they had another job. As they started the boat they had realized that there was an engine problem. The Boat not starting up, forced the captain and the crew to stay for weeks and try to fix it. But during that time the crew got trapped in Chernarus because they couldn't get the boat fixed and the outbreak started. The effects of the outbreak started taking its toll on Marcus, he started to get random mood swings, lashing out at his crew members. Marcus left the boat to survive on his own.