According to some YouTubers at the least, that's what I've heard. If that's the case, then maybe it isn't really a surprise why the matchmaking feels bad, aside from the obvious team balancing issues. I still think both versions of matchmaking are bad, mostly for the same reason of team balancing, but I gotta say that it isn't very transparent what kind of matchmaking Iron Banner is running off of in the game currently. I thought it was CBMM this whole week.