Call of Duty: Black Ops 3 PC players recently got a free weekend of multiplayer action on Steam. It appears that is was just in time for them to hone their skills and buy the game so they could grab the third DLC pack, Descent, which was released today for Xbox One and PC. PlayStation 4 players got an early jump on the DLC last month.

The pack offers four new multiplayer maps and a Zombie experience. The zombie mode, called Gorod Krovi, takes players to an alternate universe Stalingrad beset by mechanized zombies and dragons controlled by Group 935.

As for the new multiplayer maps, they are:  

• Empire: Fan favorite map Raid returns, re-imagined in this classic, medium-sized map as an authentic Roman villa, where a classic map structure mixes with the new gameplay mechanics of Black Ops III.
• Berserk: A Viking village frozen in time enlists players to fight through blizzards, for control of the center bridge. This medium-sized map features wooden buildings, deadly rocky outcroppings, and tight chokepoints.
• Cryogen: Located far in the Dead Sea, this isolated compound holds some of the world’s most dangerous criminals in frozen isolation. Sentry towers keep watch over the small map’s circular design as frenetic combat and wall running attacks abound.
• Rumble: Gamers battle amongst larger-than-life mechanized warriors in this medium-sized map, which funnels high-speed combat to the central arena, where players battle their way through fallen mechs and pyrotechnics.

You can grab it now if you have the Season Pass, but it will cost $15 otherwise. A fourth DLC pack will be coming in October to round out the pass. As usual, PS4 players will get it first for a month before it become available for PC and Xbox One players.