The granddaddy of them all, the Enclave, is one of the most secret groups to enter, and one of the most elaborate once you’re part of the team. These secret societies offer unique faction-specific apparel you can unlock, as well as other bonuses. These aren’t your average factions either - there are some strange groups, like the Cult of the Mothman, or the Order of Mysteries. West Virginia is a big place, and there are a couple weird factions you can find while exploring in Fallout 76.