I like to play Single player campaign first, that way I get used to the game and controls of the game, these people online playing multiplayer are really good, If I did not play first to get used to the controls I would really get my ass handed to me, atleast this way I still get my ass kicked but every now and then I get to give a good ass whooping myself. My favorite is online coop though, there is nothing better to me then kicking ass with a friend. I play on PS3 mostly and then my 360, the one thing I don't get is why hardly no one on PSN uses a headset, that way you can really work together, to me that is really the only difference in PSN and XBL, peolpe on XBL all use headsets, that is the way to play, so PSN people get a headset, any Bluetooth works great, that one you use for your cell phone works great, get one and use it !!!!!!

I only play SP, the only games that I ever went hardcore with multiplayer are Counter-Strike and CoD4. But Counter-Strike is still the best.

i always play the single player first.