The DLCs are called First Strike, Escalation, Annihilation, and Rezurrection and were released in that order.
The maps are Hanger 18, Silo, Hazard, Drive-in, and the zombie Map Shangri-La. The related link for Annihilation has detailed information about the individual maps and the Map Pack. The information will continually be added as it becomes available
No you go to the Playstation store and purchase the Annihilation map pack for $15 and then you download it. You do need the Call of Duty Black Ops PS3 game to play it
The playstation store comes back up on 6/3/2011 it will have it on there. The Escalation Map Pack can be purchased from the PlayStation Store just like you can purchase First Strike. The Annihilation map pack should be available on July 28 2011
The Annihilation map pack probably will work in split screen mode.
There is no map pack for black ops zombies.
The Escalation Map Pack was already released and so was the next one Annihilation for the Xbox 360. Annihilation will release for the PS3 and PC in a couple of days on July 28 2011.
It was released on July 28 2011
No.
It means you can upgrade your guns.
Get the Rezurrection map pack
You do in Ascension zombies from the first map pack for black ops.
Purchase the Annihilation Map Pack via in-game store. It's worth it bro.