Activision has released a new video of Call of Duty: Black Ops II with the aim of promoting the next DLC game entitled Uprising , waited on Xbox Live on April 16 for 1200 MSP . The add-on in addition to adding 4 new maps ( Maga, Encore, Vertigo, and Studio ) will introduce a new variant of zombie mode called " Mob of the Dead ". In this mode, set in Alcatraz jail, we will step into the shoes of Chazz Palminteri, Joey Pantoliano, Michael Madsen and Ray Liotta and we should vedercela with several waves of undead.