I know some (most?) of you don't care but there's a good amount of the Gears 2 community who are looking to rank up to lvl 100 before Gears 3 hits shelves. I'm well on my way to reaching this goal thanks to some of these crazy games I have been recently joining. Basically, if you want a relatively easy and quick way to rank up, just go search for a King of The Hill Social Match (All DLC maps are required to join this playlist)
Here's what a game looks like when everyone is cooperating to game the system for points. (Availability of dancing Minhs may vary)
Twirling your smoke grenade around like an idiot is the general call sign that you want to participate in this nonsense. Not every game will be like this but there are a lot of them out there so feel free to back out of a match and search for a new one.