Fort Hagen Fort Hagen is a " Fallout 4 " main quest location in the Commonwealth in 2287 . Layout . Depending on the point in the game when the fort is approached , the exterior of the fort may be defended by five machine gun turrets that are placed on its roof . There are two ways of entering the fort : via the roof or via the garage . Of the two , the garage is the route that bypasses the most enemies ( the synths on the second floor , and the machine gun turrets if present ) , but this path also bypasses notable loot . The garage is direct to the southwest of the main entrance . A chemistry station and a bed can be found in the garage , to the south of the door leading to the interior of Fort Hagen . The roof entrance can be reached by going around to the west side of the building and climbing the scaffolding . A hatch on the eastern roof will allow the player character to enter the building . The entire interior of the fort is filled with synth s . On the upper floor , upon entering the building from the roof , the player will find a kitchen to the east with an issue of Guns and Bullets on the table . Heading north into the hallway , the room to the east will have a cooking station and a hole connecting it to another room occupied by a machine gun turret . West of the hallway is a room mostly empty save for two Nuka Cola machines . Both rooms connect to another room which has a hole in the floor and also leads to the staircase . Both lead to the second floor . A protectron can be found and activated in the stairwell of the second floor . It , however , will not attack synths but instead may turn against the player . The second floor wraps around the staircase . A chained door to the west prevents immediate progress in that direction , so one must loop around the floor eastwards . The room to the southwest of the second floor will contain a machine gun turret . Continuing west and then north leads to an advanced locked terminal with an active mine lying under it and a military trunk with ammo and weapons next to it . The console will allow deactivation of the nearby laser turret and open the magnetic door further back in the room . Across from the magnetic door , the player can unchain the door heading back to the stairwell . If the Reunions section of the main story line quest is active , or has been completed , an elevator will be found at the back of the room , leading onward to the basement . If the Reunions quest has not yet been reached , the elevator is blocked by wooden bars . From the elevator , the player is confronted with a passage with a room at the end occupied by a machine gun turret . The passage has two doors on its east side . The first one can be unblocked from this side and is the door on the ground floor which leads to the garage entrance and the stairwell . In between the first and second door is a Tesla trap . The second door leads to a room with armor and weapons workbench es on the south and east walls . In the room at the end of the passage is a staircase heading down . Behind the security gate is another Tesla trap . Heading down another set of stairs leads to another security gate , this one guarded by a machine gun turret . At the end of the hall is a door leading to the Fort Hagen Command Center ; until the Reunions quest becomes active the door is blocked by a plywood barrier . Appearances . Fort Hagen appears only in " Fallout 4 " .