The Dead Walking by ThatGuy15

Take control of David a normal guy that has his life changed by the zombie apocalypse. He has a girlfriend named Michelle and a dog named Boomer. After coming home after a walk with Boomer he notices something is out of the ordinary. He then finds an infected man in his house and decides to leave. They are saying there is a survivors camp at the border of Canada and it is now David's job to get his girlfriend there.