sorry i missed your invite david, I was cleaning the house and left the PS3 on.
Me and my buddy swapped back and forth playing for several hours this weekend (he's playing on my character and earning me XP [haxhaxhaxhax]) and I've gotten much, much better. I still finish last on some bad rounds, but I actually had one perfect game (no deaths) and have finished 3rd and 2nd a couple times. I'm level 10 or 11 now I think.
I use the assault rifle that is one up from the AK, with a laser scope. For perks I do deep penetration and some other shit. basically i wreck fools all day, ya heard.