Better Living Underground

Better Living Underground is a quest and achievement

Detailed walkthrough
Upon entering the vault using the Pip-Boy's connection interface with the vault door, a voice will talk to the Sole Survivor via a broadcast system. To enter the main part of the vault, one must shut down the security lockdown and then access the workshop. A number of feral ghouls populate the area.

To the right of the vault door is the security office, containing the unlocked terminal needed to lift the lockdown.

Once the lockdown is lifted, the alarms will shut off and the workshop can be used once its control board is put in place. To the left of the vault door is a computer room containing Andersen, who is in possession of the Vault-Tec control board needed to unlock the workshop.

Once the workshop is restored, one must use it to clear the debris piled up in the stairwell, where the player character will be greeted by Valery Barstow, the proposed overseer of the vault.

The achievement is unlocked once the following is completed: The three remaining workshop areas are cleared of enemies, the three control boards are located within the respective areas and each of the three workshops are then activated.

It is best to locate one board and activate the appropriate workshop one at a time to avoid confusion and/or getting lost in the caverns.