Vault-Tec Headquarters

The Vault-Tec Headquarters building is located in the Vernon Square area of the Washington, D.C. ruins.

Layout
This DC office building is located east of a Vernon Square metro station. The player will most likely encounter super mutants in this area.

Building history
This was Vault-Tec's base of operations around the DC area. From this location (specifically, by accessing the Vault-Tec mainframe), you can learn the locations of Vaults 87, 92, 101, 106, and 108.

Accessing the mainframe requires authorization from all three System Operation terminals. Station 3 is on the first floor of the Administration Room, terminals 1 and 2 are upstairs of the facility.

Enemies
Resistance inside the building consists of security robots and turrets; the models inside are regular protectrons, sentry bots, robobrains, Mister Gutsies, automated turrets and one special model of the robobrain - the Masterbrain - on the same floor as the mainframe. You can turn off the Masterbrain and all other security robots in the Vault-Tec Headquarters by using the correct command on the three employee terminals in the mainframe area. Alternatively, you can destroy Masterbrain and use it to shut off all other security robots.

Super mutants have been encountered fighting the robots in the Guest Relations area. It seems they have been using the Vault-Tec Headquarters as a massing point, as gore bags, which are a common find within super mutant bases, are located in the Guest Relations men's restrooms.

Related quests

 * Agatha's Song: The Vault locations retrieved here help with the optional portion of the quest.

Appearances
The Vault-Tec Headquarters appears only in Fallout 3.

Bugs

 * It is entirely possible that once you've killed the Masterbrain, and attempted to shut down all other robots, that all other robots and turrets will remain active and hostile.
 * It is possible to get double XP by destroying all robots then by using Masterbrain to shut everything down, on your way back/out all the robots you killed will have 1 bar of HP. Shoot them again and you will get the XP again. Robots you have vaporized or melted with energy weapons will not be revived but their inventories will be broken.
 * It is extremely likely (if you have already finished Agatha's quest) that the door which leads to the mainframe can't be opened, even if you manage to get the right authorization from all three System Operation terminals. The mainframe terminal can still be accessed by entering the first floor of the mainframe room and jumping on to the pipe coming out of the wall in the south east corner of the room. From there you can jump onto the computer on the south wall. Then, looking up at the terminal overhead, jump and access the terminal while you are in the air. Alternatively, the door can be opened with the "unlock"-command when selected in the console.
 * There is a shopping cart outside the building located in between the vending machine and the entrance which, when brought to a specific spot, will disappear and reappear several times, depending on where your character is facing.
 * If you kill master brain and turn off the security (and subsequently all the other robots) it locks the main frame access door. states "key needed to unlock" but there is no key.  If you saved a game previous to the interaction with master brain, you can reload it and rectify this occurrence.  Warning, If you have Fawkes as a follower, he is so aggressive that he will kill master brain and, as it looks just like any other robo brain that you may not notice and turn all the access off while interfacing with the robot.
 * A work around to this is to go back downstairs beneath the mainframe access terminal and: 1. jump onto the pipe and then to the top of the computers to the right. Save here.  2. jump to the corner of the computers to the left. ( this puts you directly under the mainframes access terminal -- actually a bit to the left.  3. as you jump up towards the terminal, press the "A" button to access the options menu.  This may take several attempts.  It took me 4 tries.  Then you can download the access codes and vault locations needed.

Gallery
Штаб-квартира Волт-Тек Vault-Tec-Hauptquartier Sede de Vault-Tec Vault-Tec Headquarters