Tomas Tuns family inherited a farm in Chernarus and handed it down to him. He picked it up as a teenager and took a liking to it. Of course with a farm came along the the skills of hunting, first aid, cooking, fishing and the like. Eventually, Tomas fell in love and had a young family started. But all of that was ripped away by life. First, his wife died after giving birth, not from childbirth that would be too cliche. She died from pneumonia a year before the zombies showed.
His son died in Tomas' arms, ripped right from him still screaming as the zombies ripped intestines and organs in greed and gnawed into bone. Tomas ran. He ran from the world, from everything he knew and ended up in the woods sunken in his own misery. Refusing to cooperate with life but to much of a coward to end it all. Eventually, one morning he woke up and watched the sun rise and remembered some of the good times and decided to make some good in the world. To do some things for others and put the world in a place his boy would be proud of him when they saw each other again one day.