Current changes to Team Dubs are being modified and will be up by Halo:Reach release. However, one change I will let you all know is the Team Dubs tournament will be hitting MW2 and EGC in order to further allow the love to be spread around.
If you wish to do a Team Dubs tournament, you may ignore the gameplay types on the right and simply ask RyukeHellfire65 to set up a Team Dubs yournament for you.
Notify him and sign up here
Thank you for your patience.