A new gameplay mechanic in TTK has been discovered during a gigantic datamine dig. Two very adept individuals have found an incredible game changing feature, which is locked away for a future update, by datamining the Crucible Quartermasters loot inventory as well as the Crucible bounties. I'll just leave this here: "Automatically Opt-out of matches with/against Fireteams of 3 or more players when using matchmaking in Crucible and not currently in a Fireteam"