The kind PR folk at Activision have sent us a new trailer for Escalation, the second downloadable content pack for Treyarch's Call of Duty: Black Ops, and being the sharing, caring individuals that we are we thought you might like a sneaky peek.

The trailer, embedded below, takes a behind-the-scenes look at the development of the DLC's four new multiplayer maps: Zoo, Convoy, Hotel, and Stockpile -  showcasing each environment's various choke points, sniping spots and open expanses.

A picture can say a thousand words. A moving picture can say thousands more, so with that we'll shut up and leave you to it. Enjoy.