We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
The term doesn't describe anything specific. I wondered about this stuff when LIVE on the XBOX 360 got going, you think they're talking about specific hosted competitions or something but they just mean play online or invite your friends to a clan battle.
They're just using big, non-specific terms to describe clan matches. You can start one if you like, if you've got a clan or you can invite people but the chances are you won't get a game unless it's on a game that's well played anyway.