Have you ever wanted to return to the vault,or to have a home where you and your treasures are protected from the atomic wasteland?Now you can!
The Lone Wanderer's Lair includes:
-Vault Door
-Double Bed Bedroom
-Big Bathroom with Bathtub
-Clinic&Laboratory
-Classy pre-war living room
-Diner
-Storage&Shooting Range
-Robotic butler

The vault is located near Big Town.The key and a personalized holotape are located 
in the Megaton House or the Tenpenny Suite.(Look in the images for precise location)

Update log:
v 1.1:Changed the entrance location because of the incompatibility with ''A world of pain''
v 1.2:Added nav-mesh and a robotic butler