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 and lunch box).
 * 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.