|The following is based on Fallout: Brotherhood of Steel and has not been confirmed by canon sources.|
I'll, uh, wait here. You should be able to get to the switch on the other side of this force field using the ventilation shafts.”— Technician
In order to give the people of the Vault a chance to evacuate from the doomed facility, the Initiate is sent to the Vault mainframe, and is assisted by a technician who needs to shut down the ventilations shafts. If the technician dies, another one respawns.
The technicians appear only in Fallout: Brotherhood of Steel.