Activision has unveiled the new trailer for the zombie adventure Call of Duty: Black Ops 2 “Mob of the Dead,” featuring a quartet of gangsters sentenced to hard time on Alcatraz. Voiced by actors Chazz Palminteri, Ray Liotta, Michael Madsen and Joe Pantoliano, the characters’ stay on the prison island takes a decided turn for the worse when the location is overrun with zombies. Consequently, the guys must work together to fend off the zombie hordes and escape the island. One of five maps included with the game’s Uprising DLC, “Mob of the Dead” will debut on the Xbox 360 on April 16th, followed by a release for PC and Playstation 3 at a later date. Check out the video below.