Activision has posted the first trailer for Descent, the third DLC pack for its first-person shooter Call of Duty: Black Ops III. It will include a new zombies mission, Gorod Krovi, that will include both dragons and robots as well. The DLC pack will be released first for the PlayStation 4 on July 12, and will be available for PC and Xbox One owners sometime in mid-August.

Here's a quick description of the new zombies mission:

After escaping the swamps of Zetsubou No Shima, the Origins characters are hurled into a war-torn Stalingrad. Our heroes face their most dangerous enemies yet among the remnants of a battle between giant mechanized soldiers and ferocious dragons.

In addition, the Descent DLC pack will add four new multplayer maps (Berserk, Cryogen, Rumble, and Empire) for Black Ops III. It will be priced for $14.99 on its own or players can get it with the game's Season Pass, which offers access to all four of its DLC packs for $49.99.

See at Xbox Store