I Mainly play the duel modes and i'm getting the same players over and over and over, even when i wait a bit then queue up again. it's really not fun facing the same 2-3 dudes over and over. it's got to the point where some of them just leave the game instantly. if anything is going to cause the game to go downhill fast it's this it needs to be fixed. it seems not alot of people are talking about it either.
Side Note: I have an OPEN nat type.