An idea taken from this polish site:
http://h3.ligaheroes.pl/forum/viewfo...e5b48359cafa52Check it out with google translate and/or look at the rules in english (6th post from the bottom). It takes alot of work from the organizer and rules may need to be reduced a bit and have a few ajustments to fit HW. But its a really fun team event. There are 2 parts of the tournament, 1st is how to move on the strategic map and 2nd is playing the games.
There are 9 teams each playing one town type, 3 players in each team, so 27 players in all. On the strategic map
http://h3.ligaheroes.pl/forum/viewtopic.php?f=59&t=868 there are diffrent land areas that you can conquer. If two players from diffrent teams go for the same area they will have to fight it out in a game. Each land represents a certain template. You have an income from the land you own and from winning games and you can spend money on buildings or artefacts gaining diffrent advantages or you can get it after winning a certain amount of games. You can make alliances with other teams and also leave the alliance again. There are really many options to consider and being smart on the strategic map is as important as winning your games.