As part of the three premium packages available for Call of Duty, a digital incentive is being added to Black Ops III. It's is part of the zombies mode, adding a map called The Giant.
It acts is a remake of Der Riese from World at War, which introduced the Zombies mode to Call of Duty. It's also a continuation ofempsey, Nikolai, Richtofen, and Takeo story. The official blurb says:
Zombies returns in all of its undead glory with "The Giant," a Nazi research facility featuring the weapon upgrading Pack-A-Punch Machine. Re-live the chaos of Treyarch's classic "Der Riese" Zombies map, picking up the Zombies story with Dempsey, Nikolai, Richtofen, and Takeo where Origins left off.
Here is the trailer. It's a good bit of fun.