well use the round robin system proposed here http://bg2altleague.net/phpBB2/viewtopic.php?t=23 Then the two top teams play each other for the title. if a clan wishes to join, they have to wait until the next round of matches start, to avoid confusion and mayhem.

A roster must have at least 7 people.

Two 25 minute rounds with 5 minute break. break is optional :)

A team must field at least 5 guys or will be counted as a forfeit.

The week will run mon-sun. your match must be finished by the sunday after the match date.

Scores must be submitted no more than 24 hours after the match.

Demos should be taken by at least one member of each team, other wise they are disqualified for their next match.

Screen shots are required at the end of each round, the cfg allows 20 seconds for this.
You do not need to post or upload screen shot, but if they are requested and you cannot produce them, you count as a draw for the disputed match. This pertains to demos as well.

And the server must be running Hairys Alt patch