I've been having a lot of fun lately with the new Call of Juarez game. It reminds me of COD4 but with old west weapons. The multiplayer is a ton of fun as well, although some of the classes are just plain broken. There is a class where you can duel wield double barreled shotguns... yes, it is a cool as it sounds.
I was playing a game variant where you have to protect an area. Much of my team had dropped out (thanks, asses), so it was me and another guy vs. 5 of the other team. I got in a spot where I could bottle neck them and I got 15 kills in a row without dying, and for this game, that is amazing (if you are not a cheap sniper and spawn camping). I only wish I could have heard them cussing.