X-13 Research Facility

The  is a location in the Big Empty.

Layout
The first section is comprised of three labs, each containing a part of the Stealth suit MkII. The second section has two levels. the top level is an observation point for researchers and the lower level is a test track for the Stealth suit MkII.

Notable Loot
Enter the X-13 Research Facility. Then, make your way to the X-13 Stealth Testing Lab. Go across the bridge and there will be a sign that says "ADMIN OBSERVATION AREA (right) and OTHER OBSERVATION AREA (left). Take a left through the door and immediately on your left you will see a sign that reads "RECEPTION OBSERVATION AREA." Enter the door and go across the bridge that leads to the terminal on the wall. when you reach the terminal look to the left and you will see a rectangular vent. You must jump off the metal bridge and it will give you the option to "Open Vent." The recipe is inside with a fixer, RadAway, and (3) Sugar Bombs as well. [You must click on vent when option appears while falling, you will fall unharmed into testing ground below.] (Confirmed)
 * Stealth suit Mk II
 * Protonic inversal axe found in the Stealth Test Area #2 (VR Simulation Room).
 * X-8 Kennel Key in a suitcase in a room with a force field covering the door to your right upon entry.
 * Chinese Army: Special Ops Training Manual: In the reward safe upon completion of all the Stealth Suit tests.
 * Chinese Army: Special Ops Training Manual: On the floor, opposite the door in the room where you get the chest plate for the sneak suit.
 * K9000 Mod - Resla Roil Bathroom observation area terminal has this.
 * Information about Auto-doc upgrade: Implant Y-7 is stored in the terminal just left upon entering office observation area
 * Nuka-Cola Victory is found underneath a Chemistry set, on the first floor, before the Testing Lab, along with a Nuka-Cola Quartz. Another Nuka-Cola Victory is found near a hot plate in office 2 observation area.
 * Battle Brew x3 in a Strange Cask in the nightstalker area of the basement and another one that can be found in the same room, by looking above where a force field can be seen with a skeleton, stimpak, super stimpak, stealth boy.
 * K9000 Mod - Mentat Chow information stored in office 2 observation area terminal.
 * La Fantoma! Inside lab #1 under a pre-War book next to the terminal.
 * Recipes - Lockpick skill book can be found in one of the vents in the X-13 Stealth Testing Lab
 * Recipes - Sneak skill book From the test entrance turn right and go through the left door (the one sharing a wall with the "Hold up, Rocketeers!" poster), go through the door just on your right (the one sharing a wall with the Repconn poster), go through the hole in the wall on the right, go straight through the next hole in the wall, and the skill book is between the two fridges.
 * Three Mine Boxes, two Ammunition Boxes, and a LAER can be found on top of the building. It seems, however, that the roof can only be reached by jumping down from the cliff above, which in turn can only be reached by jumping up a small pile of rocks, just west of the Big MT West Tunnel.

Appearances
appears in Fallout: New Vegas add-on Old World Blues.