Some valuable loot can be found here guarded by an automated turret. It also seems to have been previously inhabited by a larger number of people, with many skeletons in various locations within. Notably, the skeletons start to slim in quantity the further one goes toward the rooftop. If Stiggs is allowed to leave the the mobile base crawler, he will travel here but then disappear after the completion of the quest Who Dares Wins.
The main entrance to the storage facility opens into an alcove that can be walked past to get to a dirty and grungy workroom of sorts. A set of stairs leads up to the second story. All that is on the second story is a door that leads back outside.