Hidden Valley Bunker

The Hidden Valley bunker is a location in the Mojave Wasteland. It is located southeast of Sloan in Hidden Valley and is the home of the Brotherhood of Steel in the Mojave Wasteland. The bunker is one of many in the valley and marked by a small broken tree stump directly on top of the dome.

Exterior
The bunker is marked by a small broken tree stump directly on top of the dome. You will not be able to gain access to this bunker unless you have taken the holotape containing the passphrase from the two dead Brotherhood of Steel Paladins at the REPCONN Headquarters, the one near Black Mountain, or the 2 dead Brotherhood soldiers in a ditch on the artillery battered area outside Nellis Air Force Base.

If you have the holotape and passphrase, the player will be given the option to say it into the intercom. Otherwise you can attempt to pick the Very Hard lock (lockpick 100) or by having follower Veronica Santangelo with you. Access can also be granted through the quest Wild Card: Side Bets or by advancing far enough into any storyline to be asked to investigate the BoS.

Interior
The facility is divided into an entrance area and two main levels. The Brotherhood of Steel Paladins will respawn after a couple days,if players are planning to take it over, it is advised to do so in one trip.

Entrance
After entering the bunker there is a large entry room with a locked door on the opposite side, similar to all the other bunkers in Hidden Valley. On the other side of the locked door (you need a lock-pick skill of 100 to unlock it) is a empty room with open doorways to the left and right and is guarded by at least two stationary Paladin on the opposition wall. They do not appear if you had brought Veronica with you. The doorway to the left leads to a small office with a desk and a computer terminal. While the doorway to the right leads to stairs going down to the main section of L1.

Hidden Valley bunker, first floor
The first floor contains the personnel quarters, a shooting range, armory, medical bay, and a school/educational room where initiates are trained.

After turning right down the set of stairs into the bunker, turn left then right and there are two sets of Knight dorm rooms located one above the other with a set of descending stairs for the lower room. Each bed has a footlocker with a combination of a mid-condition laser pistol, energy cells and/or microfusion cells.

Hidden Valley bunker, second floor
The second floor contains the command room with living quarters for the Elder and Head Paladin Hardin located next to it, an archive/computer room for the Scribes, a workshop for the Knights to repair and manufacture equipment, and a room containing VR chambers which seem to have been placed around the bunker's main reactor.

The entrance area The Second Floor has the Brotherhood of Steel logo on the wall and two paths that go off to the east and to the west.

The west area has the Command Room with Elder McNamara and another adjoining hallway. Further down the hallway is where you find Head Paladin Hardin, he can be found in either of the two rooms beyond the first room.

The east area has the archive computer terminals, the Machine shop and the Virtual Reality pod room. The Virtual Reality pod room has both Head Scribe Taggart and Apprentice Watkins, it also houses the Self-Destruct Authorization Terminal and the Self-Destruct Terminal (Locked - Very Hard). If you successfully hack the terminal you can initiate a self-destruct sequence that will immediately Vilify you with the Brotherhood of Steel and causes all Brotherhood of Steel members to become hostile. You can abort the sequence by reactivating the terminal and choosing to abort but has no effect on their hostility to the player at this point.

Notable loot

 * Located in Head Paladin Hardin's room in Bunker L2, next to the Elder's room, contains a set of old not faction-specific T-45d power armor and helmet, taking it is stealing.
 * Knight Torres, at the shooting range, has the key for the door that is on the sub level of the shop-counter. However, sometimes the key is not needed as the door is already unlocked. With the key, you can access the shop from the door below, stealing four perfect sets of T-45d power armor and three T-45d power helmets, as well a few rifles and ammunition.
 * In the shooting range outside the quartermaster's office it is possible to find two gauss rifles lying on the ground in the left-most partition. This may be due to the paladins cramping into one booth and shooting one another, and due to the force of the gauss blast, the gauss rifle flies off into the booth.
 * In the white plastic bin by the desk in Schuler's office. Bunker L1, west of the central hub corridor junction a Nikola Tesla and You can be found.
 * Approximately 360 energy cells in footlockers in the living quarters as well as a moderate amount of microfusion cells and caps.
 * The Brotherhood of Steel Paladins and Recruits will respawn allowing you to get unlimited amounts of recon armor and power armor.

Appearances
Hidden Valley bunker appears in Fallout: New Vegas.

Bugs

 * If you have left a companion inside the bunker and has been detonated, they will not be killed. They will remain there, on an inaccessible map.
 * When ED-E is a companion, he may get stuck in the beams of the low ceiling in the lower levels of the bunker. Walking away some distance, waiting for 1–2 hours, or finding an non-player character who comments on ED-E will cause him to teleport to you.
 * A group of three Great Khans may appear in the main area of the Brotherhood bunker and remain completely unnoticed by the Brotherhood. This may happen after you try to complete Oh my Papa quest if you can't find Melissa (another glitch if you do meet Melissa and finish her quest before beginning the Great Khan quest). This may be the reason behind the glitch.
 * If you access the Brotherhood bunker with companions, but they're too far behind when you enter the bunker, they may spawn inside the bunker past the locked door rather than beside you. This can cause a blocking problem if you have Veronica Santangelo as a companion and the user is unable to use the intercom because of a scripted sequence. Because she spawned behind the locked door, the sequence never completes, and so the player can never get in.
 * The paladin sitting at the shooting range may go missing. His reference ID is: - use the console command  followed by . He then returns with his helmet on.
 * Some named members of the Brotherhood (Hardin, Lorenzo, Taggart etc.) may turn on you any time after finishing possibly either Still in the Dark or Eyesight to the Blind. This can be solved simply by wearing a scribe robe when you enter the bunker (Confirmed for me after finishing Eyesight to the Blind by killing Tabitha- quest decisions may or may not influence the glitch?).
 * Killing any Brotherhood member inside the bunker through any means other than the Mister Sandman Perk immediately turns the entire base hostile regardless of whether or not the kill was 'silent'.
 * About three or more Brotherhood Paladins my spawn in the same shooting range stall and get stuck there trying to shoot at the target dummy. This may cause one of the Paladins to drop his/her Gauss Rifle on the floor next to them. Though the weapon says "steal", it will not have an affect on your karma, your position with the Brotherhood, nor will any of the nearby Paladins seem to notice you taking the weapon.
 * By zoning out and back in the locker will be refilled with various ammunition, allowing you to collect an unlimited amount of energy ammunition (by constantly zoning in and out) and convert the ammunition into other types of energy ammunition, or even max charge ammunition at the workbench on Level 2.
 * When attempting to leave or enter the bunker, the game may randomly crash, requiring a restart.
 * If you kill any Brotherhood member in Bunker Level 1 with Energy Weapons and they turn into a Goo Pile, you need to leave, then come back 3 game days later; you should be able to search the Goo Pile, but the game might register it as pick-pocketing.
 * Occasionally, the exit door may become locked, trapping the Courier inside. You can obtain this key by pickpocketing Ramos; otherwise, you will have to reload a previous save.
 * The merchant may begin to lag when asked to see her wares. The merchant will repeat her lines 2-3 more times before the item menu appears.
 * After destroying the bunker, it is possible to re enter the base by jumping onto the upper left part of the rubble, causing you to glitch through, then moving to the opposite side. Coming out however, will cause you to get stuck in the ground.
 * At any time if you are planning to take out most of the brotherhood personnel by using the turrets, you can freely move the turrets around the base to key points using a piece of armor. (confirmed with Faction T-51b armor) If you drop the armor on the ground and "push" the turret around using the dropped armor, you can move the turret.