The 2 images should be self-explanatory. Obviously it could be anyone else who put on the tags. It would be one thing if half the lobby was tagged UN, but there are exactly 7 UN tags, and they are all on the same team in a 7x7.
#UN clan has figured out how to que up as a team in group
next pendant
next pendant
played against another UN quad
median hill
You can join the same team as your partner, when you the clan tag , so because they are using the tag [UN] the game group them together, this is known by the community
green stratus
yeah this isnt a bug, its intended to you can play with a team
hard zodiac
its not a bug its a intended feature for team games if u put [urclantaghere] u can play with friends or clan members.