Gametitle-FO3 BS
Gametitle-FO3 BS
You are in direct violation of U.S. Security Statute A567/B. Security is now being summoned. Have a nice day.

M.A.R.Go.T. (Metro Authority Rapid Governmental Transit System) is a pre-ZAX technology computer system that heads the automated defense system and controls the trains, robots, and other maintenance personnel in the Presidential metro in 2277.[1][2]


Having been in service since April 14, 2065, M.A.R.Go.T. watches over the Presidential metro which connects the White House with the Capitol building as well as Adams Air Force Base.

Apparently M.A.R.Go.T. realizes something happened on the surface long ago, but is not sure what. In the end, what happened is meaningless to her anyway as her primary function is to protect the Metro and she will continue to do so until she is no longer able to.

A nearby maintenance terminal in the metro mentions that M.A.R.Go.T. originally had a male voice, but was changed to a female's voice during its development just so that the system could be given the acronym M.A.R.Go.T. as a name. Much to the annoyance of the maintenance worker who was given the responsibility of programming her new voice, this was implied to be somewhat onerous.[3]

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Essential: noIcon cross
Enslavable: noIcon cross
Companion: noIcon cross
Bounty: noIcon cross
Merchant: noIcon cross
Repairman: noIcon cross
Doctor: noIcon cross
Rents bed/room: noIcon cross
Starts quests: noIcon cross
Involved in quests: yesIcon check


  • Who Dares Wins: M.A.R.Go.T. will ask the player character to approach the console to be identifed. Passing a "very hard" Speech check, using the Science skill, displaying the Senate employee ID, or using the Robotics Expert perk gives access to more information and causes the nearby sentry bots and Mister Gutsies to no longer be hostile. M.A.R.Go.T. will also mention that the fuse for the Metro needs to be replaced before the train to Adams Air Force Base can be used. She will not however, allow the sentry bot with the replacement to be activated until the security breach is contained.

Effects of player's actionsEdit

  • Failing to provide identification through one of the methods mentioned above turns M.A.R.Go.T. hostile, causing all of the robots in the Metro to remain hostile towards the Lone Wanderer.

Notable quotesEdit

  • "You are in direct violation of U.S. Security Statute A567/B. Security is now being summoned. Have a nice day."
  • "My primary function is to maintain security for the Presidential Metro System and ensure the safety of all its passengers. I was installed and activated within the Presidential Metro on April 14th, 2065 and switched on at precisely 5:20am. I have been carrying out this primary function since that inception date."
  • "M.A.R.Go.T. is an acronym for the Metro Authority Rapid Governmental Transit system."
  • "The Metro Theater Group production of "Subway, Subway" originally scheduled for November 4th, 2077 has been postponed."
  • "The Senate Luncheon with Chinese Ambassador Xiu-Ling scheduled for October 31st at noon has been indefinitely postponed."


M.A.R.Go.T. appears only in the Fallout 3 add-on Broken Steel.

Behind the scenesEdit

April 14th, 2065, the date of M.A.R.Go.T.'s installation, is exactly 200 years after the death of Abraham Lincoln.



  1. "An automated defense system is headed by a Pre-VAX [sic] technology computer system named M.A.R.Go.T. (Metro Authority Rapid Governmental Transit System). She controls the trains, robots, and other maintenance personnel."
  2. Fallout 3 Official Game Guide
  3. Presidential sub level terminal Log Entry AK197872