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 tries to survive in a post-apocalyptic Washington D.C.
https://www.youtube.com/watch?v=ix_eNs1HXYs
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 silent melee attack or go in guns blazing with your choice of each class firearms. You need to be able to improvise as nothing is certain and a horde of walkers is always right around the corner.