I only play online, except the first few days when I play the single player. But I play on PC
Been playing Call of Duty games since a few months after the first one came out. and I've been in a CoD clan since the expansion pack (United Offensive) in 2004. Yikes, that's a long time
In case you don't want to analyze (I didn't ), others have done it already:
FPSadmin.com
BashandSlash.com