Need to have tag to compete

We are a csgo clan group and will be playing other teams in a couple weeks if you want to be playing against other teams you must have this clan tag before you name, if you dont know how to put this tag before you're name just (go in csgo and click game settings and if u scroll down a little you with see TEAM TAG click the one that says no and then pick my group. Just message me if u need any help.