Go to your game history and search back to your first few games, look at the game history of those matches and check the players levels. If they have a low beginner level still, then they probably dropped this game for something better and never came back.
I know ranks don't equal skill. I'm looking at their ranks based on their play time. Low rank = little play time, which means they probably left for COD or something.
how many pages of games can you guys go through before you start to find games full of high ranked players?
[Edited on 03.04.2012 4:42 PM PST]