[Slyk]

And you'll need all the maps to have additional spawns placed so that you don't telefrag eachother all over the place. You could use the 'spawn popper' thing or just get some custom map makers to redo their maps with more spawns. But, in the end, you'll need MUCH bigger maps. Can't think of too many stock maps that wouldn't choke on 40 players, let alone 64. But a very cool idea.