You should receive an email from the Tournament Director a few days before the tournament is taking place with a link to the Discord server being used for the tournament.
Join the server right away. Once you join, change your username to your real name and indicate that you’re a staffer in your name. You can do so by typing a command like this into the Discord chat:
/nick Mike Bentley (staff)
Send an @mention or DM to the tournament director to add you as a staffer. Once you’ve been added to the staffer role, you should see the Control Room set of rooms like below:
Be prepared to do an equipment test call with the tournament director to make sure your sound and video is coming through okay.