How to assemble the full Stealth Suit MK2 in Fallout: New Vegas
The complete Stealth Suit MK2 | Fallout: New Vegas
The complete Stealth Suit MK2

The Stealth Suit MK2 is found in the X-13 Research Facility and is one of the best outfits for stealth-focused builds in all of Fallout: New Vegas. It was added with the Old World Blues DLC

It comes with numerous benefits and is also required to finish the main questline of the DLC. Finishing a set of specific stealth challenges also upgrades the suit further, greatly improving its effectiveness. 

Acquisition of the suit

First, you must make your way to the X-13 Research Facility, which is located on the western edge of the map. 

Location of the X-13 Research Facility. | Fallout: New Vegas
Location of the X-13 Research Facility. 

Once you’re inside the facility, walk through the first door directly ahead of you and look left, you’ll see a set of 2 doors, labeled “LAB #1” and “LAB 2”.

Door to the corridor. | Fallout: New Vegas
Door to the corridor.
Two doors in the corridor. | Fallout: New Vegas
Two doors in the corridor.

Both of the rooms house a single part. LAB #1 houses the arms, while LAB #2 houses the boots.

Arms in LAB #1. | Fallout: New Vegas
Arms in LAB #1.
Boots in LAB #2. | Fallout: New Vegas
Boots in LAB #2.

Once you have both of these parts, exit back to the hallway and continue around the bend you saw earlier. You’ll see a door marked with the sign “LAB  #3” on your left- that’s where the last part of the set is located.

Door around the bend in the corridor. | Fallout: New Vegas
Door around the bend in the corridor.
Chest armor in the LAB #3 (full armor suit used for reference instead of the original chest plate, due to a bug that made the chest plate glitch into the table, making it invisible, but still possible to pick up). | Fallout: New Vegas
Chest armor in LAB #3 (full armor suit used for reference instead of the original chest plate, due to a bug that made the chest plate glitch into the table, making it invisible, but still possible to pick up).

Once all of the parts have been picked up, the full armor will be added to your inventory.

Benefits of the suit + Tips

One important note is that the armor, despite being meant for stealth applications, is actually considered Medium armor, which is suboptimal for stealth applications, as it raises player visibility.

  • The armor will automatically inject Med-X when the player enters combat
  • The armor will automatically inject Stimpacks while the player’s HP is low.
  • The Stealth Suit MK2 talks to the player, although this has no effect on sneaking.
  • Completing the side quest “Project X-13”, which is given to the player after assembling the suit, gives the player additional benefits while the armor is equipped (+25 Sneak, +1 Perception, +1 Agility, +20% Movement speed while crouched)
    • The last benefit is particularly beneficial, as it allows the player to get out of sight faster, which often results in remaining hidden for longer.