i think the map is called vegas junkyard or somethin like that but when u first start out in the vehical bay go kill the 3-4 guys right outside that then immediatly go to the left, there will be a ladder, go down it and ull be in a tunnel(it only goes to another ladder) go down the halls till u see the other ladder and chill there. guys will come and stand right by the ladder and all u gotta do is wait till bout 5 of them get there and chuck some nades up there and smoke em. i got to staff in bout 30 mins doin this its real easy.. and if you run out of nades jus pull out ur spas 12 and blast em. real easy n simple

Ya if you want the cqb pts. quick go to villa and kill all the dudes on the right stairwell. If you have it on high density you can get about 8 up close kills before they stop coming.