You can, its just you have to pay for it . I have that it is currently 15 dollars, it has new maps including some of the calssic maps from the first modern warfare. Unless you mean you have already bought it and can't play it then I would recommend contacting Infinity Ward or Activision.
No, they will be brand new maps for the map pack!
You can't play it if the lobby chooses a map you don't have. Each map pack will be around 15 to 20 dollars unless you buy the one that includes all maps.
No, there a the normal size of Call of Duty maps. Relatively small.
they are not out yet but they will soon be out ps3's to dl,
midnight for pacific time : )
April 29 it already came out for xbox360
No they cost 1200 MS points.
The new mappack contains 5 new maps! There will be 3 brand new maps (unfortunatly i dont know the names) and 2 Retro maps from COD4 (Crash and Overgrown)
yes they cost 15 dollars (1200 Microsoft points)
$15, PC users it's free.
March 30 for Xbox 360. PS3 follows after shortly.
Well you cant play old cs maps on new css but people make them im sure for the css try fpsbanana.com they have big selection of custom maps you can download for free and play them.