The details, of course, would need to be determined. But the general concept is that you have two sides led by pre-appointed leaders who then get to do a "draft" of the rest of the players. I imagine it could go something like this:
1) Admin message is sent out in game requesting that anybody interested in playing the draft round sign up for it. A deadline is given.
2) All the players who have signed up by the deadline are listed to the pre-appointed leaders. They take turns selecting who they want on their side. A coin is flipped (or the digital equivalent thereof) to determine who starts.
3) Players are then automatically assigned to their team when they join the game.
Some other items of interest though:
- How long does this game go for? One interesting idea that Turbo Pig came up with is maybe having the first team to build a level 70 become the winner; game automatically ends when this occurs.
- How do you handle inactive players? Can leaders "kick" them from a team? If so, can the kicked player roam a map solo, or are they forced to not play the round any further? Maybe a small mini-galaxy separate from the rest could exist as a sandbox for them?
- Do we want just two teams? We could also try a three-team draft, so that if one side got too big the other two could team up to take them down and delay their winning. My counterpoints to this are that I'm not sure we'd have enough active players to make up three active teams, and the tendency toward jumping one side repeatedly might ruin the fun. Two big sides could be a thrill in any event.