Born to a family who made their living off of farming, he grew up learning how to run the farm so that he could inherit it. He dropped out of school in his early teens to help out his father with the farm. Jan helped sew seeds and herd the few sheep they had. His mother would always be the one to cook their dinners for them. On weekends Jan would often go to the local pub for a drink and to socialize with people.
One year his father fell ill and soon after succumbed to it. After this Jan had the responsibility of running the farm. The weekend of his fathers passing Jan was at the pub drinking and trying to feel better when he was approached by a man. The man had a rough look about him. After chatting for some while the man gave Jan his contact, this was to potentially do some business in the future and to speak upon certain matters in a more private location. Upon contacting him he was told stories of the armed struggle by the NAPA fighting the Chedaki. He was told the horrors committed by the Chedaki upon the Chernarussian citizens. Instantly Jan grew more interest into the NAPA's goals and mission. After months of back and forth meetings with the man and his colleagues he had been tasked with making a stash in his barn which contained weaponry.
He was drawn into the trouble and as he continued to get more involved with NAPA he hated the Chedaki more and more and was taught how to shoot, reload and aim to kill and fight for the good of his country. He took part in some minor raids on Chedaki remnants and strong Chedaki supporters. He also disliked the interference of any foreigners as it was none of their business.
After the outbreak he kept in contact with some fellow NAPA guerrillas. Since the outbreak his hatred for some foreign people has grown after meeting some ignorant people who treat the country as their own and have no respect for the local people and culture of Chernarus.