The residents were all pacifists who practiced a non ... Vault 111 is found in Fallout 4, and like most Vaults, the inhabitants weren't aware of the experiment they'd become part of.

Vault 4: Those poor, unfortunate scientists ... Vault 76: A control Vault, and the one from which all Fallout 76 players emerge. Vault 81: A Vault focused on researching diseases and antibodies.