Map pack content announced today 30th April

Bailout - a multi-level apartment complex

Storm - an open industrial park littered with heavy machinery

Salvage - a snowy junkyard fortified by stacked debris and crushed cars

Crash - a war-torn urban environment (CoD4)

Overgrown - features a massive dry creek bed (CoD4)

http://uk.ps3.ign.com/articles/107/1077466p1.html