i have a cool idea, imagine 8 player zombie map but half of the map is blocked off, and 4 players are on one side of the map. and the other on the other side. theres a big gate splitting the map in half, (map size would be about 2 zombie maps.( and the only way to get rid of that gate is to induvidually turn on the power on both sides of the map. therefor reuniting all 8 players.