A storage vault for guns and other weapons to protect the base from attack.
The only light in the ‘coffin’ of the Atlas E is that which leaks through the exhaust vents.
When the bank burned, it was demolished except for the vault, which sits behind the depot.
In the quality assurance labs there is a old safe.
A safe distance from Prize Mine is its dynamite storage vault, designed to explode up–not out–should the worst happen.