It's matchmaking clan.
They are playing on:
-Dust 2
-Office
-Cobblestone
-Overpass
-Mirage
-Inferno
-Cache
-Nuke

How to join?
The minimum rank is MG1 or better.
A aim map game and if you play well then you will come across the team match with the team. If you are good, you can come to the team.