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" in 1st alcove to the left in the middle room of the maintenance tunnels (it's on the shelf next to the duffel bag).
 * Saturnite Fist in the NW tunnel behind the locked door

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