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Initiate Vault Decontamination is a main quest in Fallout: Brotherhood of Steel. It is given to the Initiate in the Corporate Vault Laboratory Level 4.

Quick walkthrough[]

Get to the emergency decontamination center and activate the vault decontamination sequence to kill the giant blob.

Detailed walkthrough[]

Patty failed to activate the emergency decontamination procedure and asks the Initiate to do this. Activate the switch next to Patty and enter the emergency room. There is a blob mouth here which must be dealt with (Oh Shit! (Part 2)).

Flipping the switch on the machine behind the blob mouth will activate the decontamination sequence (a nuclear device designed to destroy the entire vault and surrounding area). Take the monorail next to the save point to get to Level 1 of the Corporate Vault - Laboratories.

You've got 120 seconds to reach the monorail at the other end of the station before the emergency decontamination procedures begin. Ignore the mutants and other monsters around as you don't need any experience any more. Just run east until you get to the exit. Take the monorail car that will take you to a distant location in the mountains, miles away from the Corporate Vault and watch the explosion.

Quest stages[]

StageStatusDescription
1 You've received the emergency systems keycard.
2 Get to the emergency decontamination center and activate the vault decontamination sequence to kill this giant blob - it's the only way to be sure.
3 You do not want to be here when the emergency decontamination procedures begin. Get back to the monorail station using the transport car nearby.
4 You've got 120 seconds to reach the monorail car at the other end of the station before the emergency decontamination procedures begin.
5Quest finishedYou have successfully initiated the vault decontamination sequence.

Gallery[]

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