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The building has two floors. On the ground floor, there is an entrance hall, bathroom, main room, and an office. Inside of the office is Brotherhood of Steel soldier Knight Tara Astlin. Finding her continues the quest The Lost Patrol. To the right of the main room is a locked door leading to the National Guard training yard, which needs to be accessed to continue the quest Ghoul Problem. The door can be opened with the Master-level terminal next to it.
The upper floor has four rooms. All of the rooms' floors have fallen out except for the room across the stairs, making it hard to access each room. The room across the stairs contains the password to access the terminal below.
- Vault-Tec lunchbox - Behind the desk in the back, on the ground floor.
- National Guard officer's password - In the western room on the second floor. The password grants access to the terminal that controls the door to the barracks. It also gives access to the armory management terminal in the barracks and power armor storage terminal in the armory.
- Assault rifle - On top of a metal container next to the cooking station on the first floor.
The National Guard recruitment office appears only in Fallout 4.