Big MT West Tunnel

 is a location in the western part of the Big Empty in the Fallout: New Vegas add-on Old World Blues.

Layout
Entrance to a subway tunnel, to the right of entrance is a door (easy) to a small room, the next 2 doors the right lead to a network of maintenance tunnels filled with protectrons Mk4s and Mk5s, along with a unique Protectron named The Custodian, ending with a locked door (hard) that leads into a subway tunnel, which it caved in on both ends.

Notable loot

 * Recipes - Unarmed skill book Through the locked door (easy) to the right of the entrance
 * Main Computer Upgrade: LAER Mod "Auxiliary Recharger Chip" Heading down along the entrance, take a right at the firs opportunity, then go straight through the door ahead. The Upgrade is on a shelf wedged between a duffel bag and the side of the shelf.
 * Saturnite fist in the NW tunnel behind the (Hard) or (Average) locked door next to a skeleton.

Appearances
This location appears only in the Fallout: New Vegas add-on Old World Blues.