Available first on Xbox 360 February 1st.

First Strike contains 5 incredibly diverse maps spanning the globe; featuring 4 multiplayer maps and a new Zombie experience. Includes "Berlin Wall", allowing combat on both sides of the imposing wall; "Discovery", a desolate, frozen German outpost in the Arctic; "Kowloon", battle in the rain along the rooftops of a towering Chinese sprawl; "Stadium", an intense locale with a pro hockey arena backdrop; and "Ascension", where you fight zombies in a Soviet launch facility.

YouTube - Call of Duty: Black Ops - First Strike Multiplayer Preview [Official HD]

I like the little interactivity they've added to the maps. Still, I have become rather bored of the CoD franchise

Too much for too little. yet again prices are too much.