BlueberryVillainThere is another style tourney you can play, I'm just tossing out this as a suggestion. It takes a lot less to organize (you don't need a set amount of team, bracket seed, servers, tourney dosen't have to last hours and hours till completion, etc), old school King of the Hill Ladder.
Essentially anyone who wants to put together a team comes to the Friday night IRC channel, at a set time (say 9est) your team captain msgs the tourney organizer (lists your 6 players and says your ready to go). It's first come first serve. The first 2 teams to msg the organizer go into the server, the third team joins and specs. 20 minute KOTH map. The Losing team leaves, the winning team stays, the specs join the losing teams spot, next team joins spec (you have like 3 minutes to ready up or the game just starts), so it's constant action, with the on deck team joining spec. So if you keep winning you stay, if you lose you are out (go back to IRC and resignup and get in line).
The amount of wins at the end of then night determines the prizes you receive. Your team won 4 games out of the 16 played, you get 1/4 of the prizes. So yah, not everyone who signs up gets to play each night, but that's the way the system works. If it gets popular you can have more then 1 server running parallel tournys, but you do not split it by skill level (it leads to sandbagging for prizes).
Something like this is the way to go...I think that's how FNF (friday night fights) was run back in the TFC days. Saturdays was SNSF (saturday night soldier fights) which was 5v5 or 6v6 all soldiers...I forget. SNSF was more fun IMO as it was a total change up from typical matches :)
They might have had brackets towards the end but it seemed like it was all organized on the fly in IRC using the kind of 'king of the court' method. You formed your team, made up a name and waited to be called up. Good teams could run the table the whole night if they started early. There might have been 2 servers hosting games simultaneously and at the end the kings of either server met up for a final...can't remember as that was like 10 years ago lol.