Heist of the Centuries

 is a quest in the Fallout: New Vegas add-on Dead Money.

Quick walkthrough

 * Create the music sequence at the terminal in the lobby.
 * (Optional): Have Christine say the password in her new voice.
 * Enter the Sierra Madre Vault and access the computer in the central chamber.
 * Kill or sneak away from Elijah.
 * Escape the Vault before your collar detonates.

Detailed walkthrough
To begin the quest, the speaker next to the elevator in Vera Keyes' suite must hear the password in Vera's voice. You can take the holotape of Vera's audition, go down to the front computer in the main lobby, collect all three music varieties, and return to the elevator in Vera Keyes' suite. Play the music into the speaker, and the elevator can now be taken to the lower level. Alternatively, if you have not killed Christine, she will say the password using her new vocal chords.

The Courier must navigate a maze of ducts and catwalks filled with security holograms, toxic clouds and many shielded speakers. In some situations, the Courier may have to trigger hologram monitors to clear a path. Once you pass through the two initial vault doors, on your right is a terminal next to another vault door. Enter the duct maze by using Vault Maintenance Access Terminal to open the maintenance access. There's a speaker nearby. Follow the passageway around to the first room. Entering the first chamber, the speaker is immediately in front of you. Halfway down the chamber you enter the range of another speaker. Jump down the broken walkway and then to the right to enter the shelter. There is a safe spot in front of the table in the enclosure with the worker's note complaining about safety and Sinclair's ignorance of the vault issues. There are two ammo crates next to the note on the shelf. Continue through the passageway to your left.

Follow the passageway around and into another shelter area. In the next room are three speakers, two of them unshielded. Turn right as you enter the room and run to a safe spot in the corner. Directly behind you above the door you came through is an unshielded speaker. Slightly to the right and up high above a doorway is the second unshielded speaker. Destroy both of these.

A third, shielded speaker is high on the wall just a bit further along the catwalk. If you holster your gun you'll have barely enough time to run down the left side of the upper walkway and reaching the terminal to override the alarms. Continue through the corridor. Your collar will explode if you stop to activate the terminal (NOTE: On XBox and PS3 the beeping stops while you access the terminal. Shut it off now.), so jump over the gap in the walkway and get through the doorway on the top level to reset your collar, then return through the door to deactivate the alarms. Note: On the right broken section of the top walkway you can actually jump onto the beam and then onto the section with the exit. If your timing is good then this is an easier way to get through than to follow the left path.

The next room adds security holograms to the gauntlet. The Hologram Control Computer is in a workers' hut to the left of the entrance to this area across a walkway with a gap in it. There are 3 hologram emitters in this room, although they require a Repair skill of 100 to disable, you can shoot them. The first is on top of the enclosed structure to the left (when entering the room). You can push a barrel onto the catwalk to the left, jumping on it and jumping in the air while on the barrel will allow you to shoot the emitter on the roof of the first structure (oddly enough, after you move said barrel, it will disappear and become visible again after you touch it and will repeat in this way), alternatively this can be achieved by exiting the room towards the gap in the walkway you came from, hopping onto the rail and attempting a jump shot into the emitter, this will make the holograms hostile so run. The second is on top of the metal beam almost directly on top of the door with the force field. You will need to run along a beam and jump up onto the roof of the structure in the SE corner of the map to reach these. The third is on the ceiling (not the roof like the 1st, but inside) of the control structure in the NE corner of the map. You can also use 2 or 3 carefully aimed hand grenades to blow up the emitters without having to get close to the holograms or the speakers (you can get up to 9 Frag grenades from the grenade bouquets that Dean set up around him from where you met him, so long as you can pass the Explosives check (30) to disarm them). After dispatching the three hologram emitters, you can turn off the security system at the last terminal.

After the room is quiet, drop down to the lower catwalk in the poison gas and grab the Vault Turret Terminal Password tape. Activate the Vault Security Turret Terminal Password as this shuts down the last set of force fields and speakers.

After entering the hall past the force fields, there is the Vault Security Terminal which can be used to shut down the remaining security.

Immediately before entering the vault is a toolbox; next to it is a holotape containing a venomous message to Vera Keyes, and a skeleton lies on a pipe beneath it - Sinclair's. A bag is next to it, containing a copy of Nikola Tesla and You.

Inside the vault itself is an assortment of weapons, armor, chems, money, chips... and the fabled Treasure of the Sierra Madre: 37 Gold Bars worth 10,539 caps each, for a total of 389,943 caps and the single greatest collection of wealth in the Mojave Wasteland - each of which weighs 35 pounds, for a total of 1,295 pounds. There are also over 2000 .357 magnum rounds inside a gun cabinet (not a fixed number, it's dependent on Luck and whether the player has Scrounger), as well as some Sierra Madre armor, reinforced.

However, the vault door seals within seconds of entrance. Lift the lockdown using the left security terminal, then use the monitor in the back to look up the word 'Vera'. This reveals that Sinclair in fact designed the Sierra Madre Vault not to protect valuables, but a small number of people as per a Vault-Tec Vault through the Great War: namely himself and Vera Keyes. Learning that Dean Domino planned to rob the Sierra Madre with Vera's help changed these plans. Sinclair left a warning for Vera, and a trap for Domino: a file marked "personal accounts", the reading of which activates a system which permanently seals the vault.

Premature Ending
If the player chooses to access Sinclair's personal accounts, the game will end in with a slideshow cutscene, stating how the courier was trapped in the casino vault, eventually dying inside. The game will then load the autosave created before accessing the terminal inside the vault.

After the Courier reads the Vera entries, Elijah will make contact. Skills of 75+ in Science, Repair, Sneak, Explosives, Barter or Lockpick can be used to persuade Elijah to enter the vault to confront the Courier personally. He will bypass the duct maze by deactivating a forcefield and walking directly to the vault door, where, if not confronted and killed by the Courier, he will trigger the trap Sinclair meant for Domino and seal himself inside.

If your reputation with the NCR is low enough, you can ally with Elijah during this conversation. He regrets putting the collar on a potential ally, and comes down to the vault. But the end slideshow starts early, detailing how you and Elijah conquer the Mojave with an army of holograms and generate a second Cloud over Hoover Dam, ensuring nobody gets the power. Unfortunately this results in a nonstandard game over. Whether he is killed or trapped Elijah activates the explosive collar, and it will detonate within a minute unless the Courier boards the elevator to the surface within that time.

Hacking the security terminal in the vault will cause the Turrets outside to turn on Elijah and if they kill him, the player will not receive the Cash out achievement/trophy. Destroying the turret generator next to the terminal will disable the security turrets and cause Elijah to become hostile when he gets to the vault door.

Elijah is immune to damage until he reactivates the forcefield blocking access to the elevator, and becomes instantly aware if the Courier steps onto the stairs below the forcefield, even if the Courier is using a Stealth Boy. Elijah can pass through the forcefield even if it is active, after which he will activate the Courier's collar.

The alternative is to sneak past Elijah and seal him in the vault, resulting in the Safety Deposit Box achievement. In order to achieve this simply leave the vault when Elijah comes down and run though the duct maze (to the left) as fast as possible; it is also highly recommended that you disable all the holograms before attempting this, as they will turn hostile once Elijah realizes he has been tricked.

Reaching the elevator causes the Courier to appear at the fountain in the Villa. The Courier can then revisit any location in the Sierra Madre. The explosive collar will have been automatically removed upon arrival in the Villa, which makes navigating the outlying areas much, much easier and allows exploration of previously unavailable locations.

Once the Courier exits the front gates of the villa, a slide show plays detailing the fates of his three fellow captives, the end of which shows the Courier deposited at the Abandoned BoS Bunker, and unable to return to the Sierra Madre (except if you use PC console commands, finding a steel "Door to Villa"). Your original equipment will be returned as you walk up the stairs to leave the Abandoned BoS Bunker. As you exit the Bunker, the radio plays a last broadcast from Vera Keyes (or Christine), bidding you farewell and reflecting on the real meaning Sinclair intended for the Sierra Madre.

Bugs

 * As of 5/15/2011 with patch 1.3.0.444, when trying to return to the Mojave Wasteland, the game will freeze on a black screen forcing you to reset your Xbox 360. Deleting patch 1.3.0.444 will allow you to return but the Villa will lose its "aged" texture and the slideshow will be removed. Edit: Tested on PC with most recent patch and game also crashes.

Edit: By changing from Hardcore mode to Normal mode, slideshow will come up as normal, and you will be returned to the Abandoned BoS bunker. This will cause you to lose the achievement / trophy for completing the game on Hardcore. This is with TU4 installed. (unconfirmed)

A possible fix to the above bug (on hardcore mode) is making sure as you're leaving to satisfy the couriers hunger, thirst, sleep deprivation, and radiation. (unconfirmed, only tested once on hunger)


 * If you are over-encumbered upon using the terminal in the back of the vault, speaking with Father Elijah will cause the dialogue to auto-skip. This bug continues to occur even if you reload from the terminal auto-save, and are not over-encumbered.


 * Upon trying to get back to the Mojave Wasteland at the end the game will just crash to desktop, rendering your savegame useless. EDIT: The new patch (25/04) has fixed this issue.


 * There is a bug when opening the computer in the Vault, after completing the mission and the slide show you will be locked in the Vault, unable to get out.


 * A bug has been reported preventing the player from leaving the Abandoned BoS bunker after finishing the quest. (workaround) go to the Xbox dashboard, then to system settings, select memory, hit Y on the drive your save is on, then clear system cache. Go back to reload the game and say No to downloading the update then load your save game and you can then exit the bunker. After which you can reload the updates


 * A bug may cause you to continue to be poisoned for the rest of the game despite being outside the toxic cloud, if upon entering the room with the three hologram guards, you turn immediately right and go down the steps to a platform within the toxic cloud where you can find a Toolbox and a holotape with the Vault Turret Terminal Password. Should this happen, you will not be able to leave the Sierra Madre despite achieving mission success (with enough stimpacks) as you will die during the ending slide show which one cannot skip through. If you wish to get the holotape, you should save your game before going down the steps and should the bug occur, reload that save game and try again.


 * Bug will act as if maintenance door is still locked and closed, even if opened (Invisible Wall), effectively trapping the player until their collar blows up. The best thing to do is wait it out for a few moments and it will then let you walk through it.


 * It is possible to make use of the third-person glitch, that lets you activate or interact with things on the other side of walls, to drop all 37 gold bars near the force field Father Elijah uses, run around the long way, and pick them all up as one, from the other side. It all has to do with looking at it at the precise angle while crouched.


 * Another workable variant of the above bug- Purchase Demolition Charges from the Vending Machine inside the Vault (15 should do the trick). Hurry out and meet Elijah before he exits onto the walkway. Then crouch on the top step next to the forcefield and toss all the Demo Charges onto the stairs you just came up. You WILL have to endure turret fire while you do this. Then proceed as noted; press against the forcefield as you destroy turrets, eventually falling in as Father Elijah runs out. Elijah hits the charges, you are protected by the forcefield, Elijah dies and you exit with plenty of time to spare.
 * Another workable variant of the above bug- Purchase Demolition Charges from the Vending Machine inside the Vault (15 should do the trick). Hurry out and meet Elijah before he exits onto the walkway. Then crouch on the top step next to the forcefield and toss all the Demo Charges onto the stairs you just came up. You WILL have to endure turret fire while you do this. Then proceed as noted; press against the forcefield as you destroy turrets, eventually falling in as Father Elijah runs out. Elijah hits the charges, you are protected by the forcefield, Elijah dies and you exit with plenty of time to spare.


 * If you save near the toolbox outside of the Vault and die, you will respawn and immediately go into a death loop. Your character will appear to die from falling damage despite respawning on the gantry. Furthermore, this death loop occurs for any Sierra Madre savegame.  To break this cycle, it is necessary to load a Mojave-based  savegame, or exit the game completely, restart, and reload.


 * During the ending slide show, the narrator will repeat, "We've all heard the story of the Sierra Madre" at least two times times before continuing on through the scripted sequence explaining the fate of your comrades.


 * When Elijah comes to meet you in the vault, if you equip a Stealth Boy and sneak, unseen, into the shield of the doorway that Elijah stands behind you will be thrown through the shield to the other side of the doorway and Elijah will appear on the vault side of the doorway. The elevator will be locked and require a key until Elijah is dead. But if you find a way to kill him from that side of the door(you can use mines or plastic explosives) the Elevator will become unlocked. This allows you to escape with all of the treasures of the Sierra Madre.


 * If you stand close enough to the forcefield where Elijah enters, you can get him to glitch you through the forcefield. It is also possible to glitch through the forcefield with all of the gold bars too. The only problem is that you have to kill father Elijah and since he cannot walk through the force field you cannot complete the quest and take the elevator back up to the hotel.(Unconfirmed)You might be able to kill Elijah with the use of land mines near the force field or if you can lure him to the force field you can shoot him through it.


 * Sometimes, if you disable the turrets before Elijah comes into the vault, he remains behind the forcefield, and you cannot kill him, thus preventing the DLCs completion. Regarding the above bug (dropping gold by the door, destroying turrets to bring Elijah into the vault and falling through the forcefield), he may remain behind the forcefield and shoot at you with his Gauss Rifle, which still injures the player. You cannot damage him through the field.


 * There is a bug where if you sneak past Elijah and get to the elevator safely through the ducts, the game will crash to the desktop, losing your achievement. To fix this, you must restart the game, and load your last save.


 * After killing Elijah, the elevator may take you to Vera's suite, rather than the Villa's Fountain. If this happens the quest will not advance as it should. At this point if you try to re-enter the vault, or leave the casino your collar will explode. However, if you use the console commands tgm and unlock on the casino's doors, you will be taken to the fountain. Head to the Mojave Wasteland gate, and change your view to third person. Then, open the console and type showinventory, then select the player.  If you now cannot see the collar id on the console, drop items until it is visible.  Remove the collar using player.removeitem X # (X=item id #=amount of item). With the collar removed, pick up your gear and use unlock to open the Wasteland gate. This will allow the ending slides to play, and you will be taken back to The Abandoned BoS bunker.  When back to the bunker, you can unlock Elijah's terminal, Elijah's footlocker, and the footlocker beside the ladder with the unlock command. Console commands can be used to complete the quest afterwards. You will then be able to continue the game, still gaining the perks and items you would have if this bug had not occured.

Behind the Scenes

 * If the player chooses to read Sinclair's personal accounts, he/she will find a letter to Dean Domino. At the end of the letter it says, "...and I will raise my glass and say 'Fortunato.'" This is a reference to Edgar Allen Poe's "The Cask of Amontillado," in which the protagonist Montresor lures his victim, Fortunato, to an underground crypt in his family catacombs, where he chains him to a wall and seals him up alive in an alcove. This is similar to how Sinclair was supposed to have trapped Dean Domino in his own grave at the bottom of the Sierra Madre. It is signed "in pace requiescat," Latin for "may he rest in peace," the phrase with which Poe's story ends.