I rented the game while back so I did not even get the chance finish it, let alone try out the MP. I now intend on buying the game (late to the party) and invest my full time in that game. Now so far I never really got into online MP so its safe to say I am a greenhorn. I think the problem stems from the fact that I had bad experiences on XBL where a lot of people are ridiculed or bitched at for being noobs instead of actually teaching them to become better. Recently got into it after I tried the Uncharted 2 MP beta and I liked it. People were actually not berating new players at all and it was as a breath of fresh air. Maybe players on PSN just have more manners then XBL player or maybe i just did not encounter those ass hole PSN players yet. In any case I had more on PSN within three hours then I ever did within a year on XBL. 

Not berating new players? with what mics exactly? my current total for people with mics over 70 matches now is 14 people.

their are little aholes on psn
but maybe less then xbox brats

play Warzones with all the objectives in 10-20 man servers..also stick to players of your own rank... so initally you will only be playing with noobs... you will figure out the maps and objectives as you put time into it... just remember to burst fire...  and fiddle around with the controls till u find somthing that feels good for u...

no problem dude...

another good tip is to get use to using the minimap..