|The following is based on Fallout: Brotherhood of Steel and has not been confirmed by canon sources.|
A key to open a door in the Secret Vault - Residence Area One, a door between two garden sections.
Found on a corpse in a console room in the Residence Two. The player has to pass three shelves blockades and finally push 9 shelves in one direction to get to the room.
- Facilities keycard - opens the door to the Facilities
- Ruins keycard - opens the door to the Ruins
- Laboratory keycard - opens the door to the Laboratories