I seem to be stuck in the Sierra Madre hologram room (the one just before entering the Vault). I've rerouted the hologram patrols, disabled the alarms, but I can't figure out how to lower the force field to advance to the next part of the vault. Did I miss something?

1 Answer 1


Quick Walkthrough on how to get through the third floor and into the Vault (I think this is what you're looking for):

From the doorway where you enter this room, on the opposite side of the room, there's a long enclosure that runs most of the length of the opposite wall, plus a very small enclosure in the right corner. The doorway to exit this room is between these 2 enclosures, and one of the holograms is standing guard next to it.

There's also a medium-sized enclosure on the far-right wall that has a terminal that controls the Hologram next to the exit. Also, on your right as you come into the room, there's stairs going down to a lower catwalk level. The Cloud is covering this lower catwalk level, and you have to jump from the bottom of the stairs to the next section of this catwalk.

Also note the metal supports overhead. The hologram emitters are on top of the supports, but walking on them can be a little tricky, especially when the holograms turn hostile and start shooting you after you take out any of the emitters. To get to the overhead supports, jump on top of the far-right enclosure from the main catwalk. There's steps leading up to the supports from the top of the enclosure.

As you turn the corner after exiting the hologram room, your collar will start beeping as you run toward a speaker on the wall ahead of you.

This terminal lets you deactivate the weapon turrets and the blue forcefields around the Vault, allowing you to get into the Vault. But deactivating the security also triggers the entire sequence of events leading up to the confrontation with Elijah, including locking the elevator out of here until Elijah actually comes down to the Vault. So, switching off the security is basically a point of no return.

You'll see 2 folders regarding the Vault's security. Back out of the folder and you'll now see a 3rd option to disable the Vault's security protocols.

  • Thanks, but it's the "exiting the hologram room" that I'm having trouble with. There's a forcefield blocking the exit. Is there a way to disable it, or does it come down based on a trigger?
    – peaches
    Mar 2, 2011 at 14:36
  • I was trying not to spoil anything, but when you turn off the security Elijah will come down and confront to player. He opens the forcefield.
    – Klokworkk
    Mar 2, 2011 at 15:38
  • The room I'm stuck in is the one just before I (presumably) get to the final vault room. There are 3-4 Hologram guards, and a bunch of catwalks above poisonous gas. Is that the point where I need to disable security to have Elijah confront me? I thought the point you refer to occurs after the room I'm stuck in. If we are talking about the same thing, how do I disable security? The emitters? Could I have missed a terminal?
    – peaches
    Mar 2, 2011 at 18:41
  • 2
    Ahh, found it. I missed the fact that when you disable the alarm, a new option pops up to disable the force field.
    – peaches
    Mar 3, 2011 at 5:24

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