Fort Strong armory is the main administration and storage building for Fort Strong.
The armory was where the Fat Man development took place. At the time of the Great War the base was waiting for authorization to transport the Fat Man shells that were being stored in the basement, after shipping the launchers to a supply yard in Mississippi.
From the main entrance the first floor walkway has collapsed, creating a ramp. Up here is an ammo box, six desks and a bank of filing cabinets. The door on the northern side is blocked, but a Fat Man can be seen beyond it, through the broken door panel; this area of the building cannot be accessed. On the lower level there are two doors: the southern door has a Novice lock which can be opened with the Fort Strong key, and the northern door leads into the hallway, which loops around the building back to the southern door.
The doorway on the western side of the hallway is guarded by a lone super mutant. There are several junk items in here as well as Private Murnahan's holotape, located on the desks against the western wall. If one turns east at the end of the room, there is a collapsed wall, which leads into the kitchen. Continuing on through the kitchen door is the mess hall, guarded by two more super mutants. Turning south after the mess hall counter and going through the door on the west side will lead back into the hall.
Looking directly west from the mess hall door there is a baseball display on the left hand wall, containing a poster and two baseballs on wooden podiums. Turning south from the door will enable one to continue through the hallway. Directly to the east is the elevator to the sub levels, which is blocked until the quest, Show No Mercy has been started. Looking through the collapsed ceiling to the west one can see the main entrance.
Continuing on south, there is a small bathroom through the door on the west, containing a first aid box. Just beyond this door on the east side is the entrance to the auditorium, behind the collapsed floor in the northeast corner of the room there is a cooler.
Scaling the collapsed floor up to the barracks will provide access to the usable bunk beds and a door in the southern corner of the west wall. Passing through the door will lead into a hallway with another barracks on the opposite side. From here, one only has the option to double back and out the auditorium door in order to continue onward.
Looking west from the auditorium door, two ammunition boxes can bee seen on the left. Turning right at the end of the corridor one will see the the locked door back to the main entrance. Facing west one can see a desk and another Novice locked door on the south wall. Picking this lock will lead into General Brock's office, containing a steamer trunk, General Brock's terminal, and a U.S. Covert Operations Manual. Inside his desk is the Fort Strong key, which will open the door back to the entrance. There is also a Master locked safe in the southeast corner.
Upon exiting the elevator there is a small office on the west side of the room, turning east will lead to the corridor to the generator room. The door on the north side leads into an office with an armor workbench and another door on the east side leading out to the generator room. On the south side of the corridor is the restrooms, which if one opens the door to the furthest stall from the entrance two purified waters are found in the toilet bowl.
From the entrance to the generator room, one can turn south and follow the stairs down to the lower floor. Immediately on the right is a door leading into a corridor to a room filled with consoles. The northeast door in the room feeds directly into another room where a mutant hound can be found sleeping by the western exit, back into the generator room. Going west around the generator and looking north one will see another corridor.
On the right hand side, half way down the corridor is a lab, containing Bravo Team's testing terminal, by the window to the south of the room. The room on the left has a Novice locked floor safe in the southeast corner.
Continuing through to the end of the corridor and turning right will reveal two large doorways on either side of a small room. In this room is a floor trolley with an open crate of Mini nuke parts and two mini nukes on the shelves to the left. On the right-handside of the room is a security cage with the door missing, inside of which is an ammo box and a first aid kit.
Heading through the second doorway will lead into the armory storeroom, but the only way down from here is to jump off the gantry to the floor or onto the forklift immediately in front and climb down. The door in the northeast corner of the storeroom connects to the corridor that leads back to the room above.
- U.S. Covert Operations Manual #5 on General Brock's desk in the armory, in the southwest corner, behind a Novice level locked door.
- The Fort Strong key can be found in the same desk.
- Mini nuke can be found in the corner display case in the same room.
- Private Murnahan's holotape on a desk by the window in the southwest corner of the northwestern room.
- Fat Man inside the hidden room on the second floor. One can see it through the spring of the west side door which is caved in by debris. This area is inaccessible in the game normally.
- 3 Mini nukes in a foot locker on the eastern side of the second floor.
- 2 mini nukes on a shelf next to the doorway leading to the armory where the crates are stored.
The Fort Strong armory appears only in Fallout 4.