How do you get clan matches combat arms

You will need to be a member of a clan to do this. One you are a member of a clan (or admin or leader), you must go to the server that says [clans] beside it. I believe this server is called Bulldog? All matches in that server are clan matches. You need a minimum of 4 players on each team. There will only be two clans able to be in a room at once, so if you want to clan war you need at least 4 of your clan in the room at one time.