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The South Boston military checkpoint is a location in the Commonwealth in 2287.


Formerly manned by soldiers from Echo Company of the 104th Infantry Regiment, the checkpoint was responsible searching vehicles for contraband, and were authorized to disassemble vehicles to this end.[1] When the Great War broke out, the checkpoint began broadcasting on emergency frequency RJ1138, calling all South Boston Army soldiers to its coordinates in a loop. As of 2287, the checkpoint has fallen under Gunners control, with an unnamed Gunner commander in charge of it.[2]


The checkpoint is located directly west of the Castle and past the bridge just outside of the South Boston area. It consists of two structures, the main building guarded by two Gunners and a trailer where a single Gunner is often found resting. The trailer houses a sleeping bag and a mattress, as well as a Fat Man.

In the main building, there is a Master locked safe with ammunition and other containers with minor loot. Two beds and a weapons workbench are also available in this building. On the northern side lies an APC. On the western side of the building, there is a cage that can be opened with a nearby Expert locked terminal. The cage contains a power armor station, a full set of power armor and a mini nuke. On top of the building lies a skeleton, next to a leveled combat sniper rifle.

Notable loot

Related quests


  • The power armor frame here yields a full suit of leveled power armor that maxes out at X-01 Mk I at level 28, in contrast to other full X-01 sets that reach a maximum tier of Mk III at level 47.
  • The items (including the Fat Man) respawn faster than the Gunners do.

Companion comments

  • When at this location, companions make comments.[clarification needed]
Location comments
Character Comment
Cait "We need to find that transmitter and turn the goddamn thing off!"
Codsworth "I wonder how long that recording's been playing. It's quite intolerable."
Curie ""
Danse "Well, that sounds familiar. The Brotherhood uses similar recall messages in times of war."
Deacon ""
John Hancock "There has to be a way to turn that off."
Nick Valentine "This thing's been on a loop for as long as I can remember. No wonder folks in this neighborhood are irritable."
Piper Wright "Yes, yes, we hear you."
Preston Garvey "Maybe we can find a way to turn that off."
Robert MacCready "I bet that thing's been broadcasting the same message for the last two hundred years."
X6-88 "I just tune it out."


The South Boston military checkpoint appears only in Fallout 4.



  1. South Boston military checkpoint terminal entries; Current Orders
  2. Fallout 4 Vault Dweller's Survival Guide Collector's Edition p.373: "[6.10] SOUTH BOSTON MILITARY CHECKPOINT
    Just west of South Boston Neighborhood, this was once a gathering place for military but is now an ambush spot for Gunners. There’s a Fat Man inside the truck trailer, loot (including a magazine) inside the small bunker, and a wall safe (Master). Unlock the outside terminal (Expert) around the back to access a small secured area with Power Armor and a Mini Nuke."
    (Fallout 4 Vault Dweller's Survival Guide Map)