Some more info regarding teams for the Halloween Challenge Map...
The map is essentially a treasure hunt, with some twists, where players / teams must store what they find in a chest at the world spawn for it to be counted towards prizes. The chests are single vanilla ones and can be locked only on the front, giving a maximum team size of three, team leaders (first name on the main lockette sign) will be responsible for sharing out prizes with teammates and teams may only have a single chest.