Call of Duty: Black Ops DLC - Escalation Map Pack

The Escalation map pack features four all-new multiplayer maps and one new zombie map. It's out on Xbox 360, PS3 and PC; it costs 1200 Microsoft Points, which is about $15.

Convoy
The Convoy multiplayer map delivers intense, close-quarters combat at the scene of an ambushed US military convoy somewhere in California.

Hotel
Takes place on the roof of a Cuban luxury hotel and casino. The map has three usable elevators that move between two floors. There are a lot of large open areas, but also smaller rooms and staircases, which promotes camping.

Stockpile
Stockpile is located in a suburban village housing secret WMD facilities, pretty much like in the COD: Ghosts remake. There is a building with two large steel doors that can be opened and closed with switches.

Zoo
Medium sized map in an abandoned Soviet Russian Zoo, with danger at every turn.

Call of the Dead
Large zombie map set in a mysterious ice-covered remote Siberian island, with multiple areas.