In the mean time, there's a way you can do "private matches" essentially. In your group that you play with, find 2 people that live fairly close to one another(At least same state, I'd say). Set them as the fireteam leaders of 2 separate 3-man fireteams. Then begin your search at the same time. We did this in Classic 3v3, since it's not a super popular playlist, and we proceeded to run nothing but NLB and sidearms. It was a ton of fun.