OVERKILL’s The Walking Dead is a four player co-op action FPS, where you and your friends fight the dead as well as the living. Set in The Walking Dead Universe, you and your group try to survive in a post-apocalyptic Washington D.C.
https://www.youtube.com/watch?v=1uMDUgJ57Dg
Each character has their own Special Abilities, Skill Trees, Squad Roles, Play Styles and Story Arcs, but teamwork is paramount. The action is close-up and intense: take out enemies carefully with a silent melee attack or go in guns blazing with your choice of each class weapons. You need to be able to improvise as nothing is certain and a horde of walkers is always right around the corner.
