This tournament will be based more on surviving the assassination attempt on you than actually assassinating your target.
Participants will be randomly seeded in a 64-player, single-elimination bracket. The only way to be eliminated is to be assassinated; thus, the only way to advance to the next round is for your opponent (in the bracket) to be assassinated. Once a participant has advanced or been eliminated, they will no longer participate in that round of games. Rounds will consist of as many games as are necessary to setup the following round.
Games will be between randomly-grouped (random.org) players varying in size based on the number of players remaining for the current round. Group sizes will be kept as close as possible. The map for each game will be randomly (random.org) chosen from a list of the participating players' preferred maps. When signing up, players must also provide their preferred map (duplicates are allowed). If only 2 players are left in a round, they will play a standard game instead of an assassin game.