I don't know if this was fixed in the matchmaking patch, but the other day, they matches I played in were so lopsided. On my team there was one player that was ranked 1 and the rest of us were 0. The other team was made up of a 17, a 15, an 8, and a 9. Suffice to say, we were slaughtered every round. And each time a match ended, the teams for the most part stayed the same (especially the 17 and 15 guys). I know they weren't partied up, because I chose the MP that does not allow parties, yet they were in each mach together.