Ah, the awesomeness of CoD2 and CoD4 is gone I see.
On CoD2/4 on PC version, if they'd release new maps, you'd automatically download them from the server you play on. Without getting ripped off.
Plus, there are zombie modes, custom made maps, skins etc.
[Edited by LoopDaLoop, 5/3/2010 12:15:12 PM]