Vault 482

Origins
The origin of vault 482 came from the Sith Emperor's personal vault on Nathema, dug back and unable to be found. Modified, this vault became unknown to anyone, even the Warlord, who can find out, but chooses not to until the time is right.

Rumors
Vault 482 is rumored to be located on the planets Odessen, Nar Shaddaa, and Redmin.

The Odessen Rumor
Odessen is Warlord Kylam-Raf's personal stronghold, a place he can retreat to if deemed necessary, and also the capital of the Awakened Empire. With these things, the vault was considered not too far from Warlord Raf's personal retreat on the planet, which also is unable to be found. The only person who knows of the retreat besides Warlord Raf is his personal bodyguard HK-51, who had received a memory wipe shortly before his return from there to the Awakened Empire.

The Nar Shaddaa Rumor
Nar Shaddaa would definitely the last world anyone would suspect a vault to be on, and Warlord Raf has been known to keep good connections to Nar Shaddaa. Also mysterious, there is a sector on Nar Shaddaa closed off for research in the Awakened Empire, known as Sector U. Sector U is a place that is unknown to also some of the most trusted within the universe, and only people who work there or have access there are allowed.

Sector U
Sector U a strange place, that not even the people released from there are allowed to have knowledge of the place. Sector U is the most secretive place in the galaxy, not even radar images and thermal images are able to be viewed, all radar waves block transmissions, and must be within 2 kilometers away in order to get a semi-clear transmission (only communication by words) type of transmission.

Sector U isn't even allowed by Grinyon or Zelltt, the most trusted people in the Awakened Empire, only Warlord Raf and any entity that can watch. All other information is strictly prohibited.

The Redmin Rumor
Redmin, Warlord Raf's homeworld, is a place we also wouldn't see him have a center at. Redmin is a quiet world with multi-environments but it's main environment is a grassy plain and fields, canyons, and quiet farms. Redmin City is the capital of the world, and only contains 200,000 people. This planet is very quiet, empty, and fairly boring. This planet is perfect for the vault, and there are locations that still are unknown to the Awakening that were old, Redminian temples from the past tribes.

Underground is never going to be a possibility as ideas. Radar images can always be adjusted, and hiding underground would be stupid. Odessen has been known to have tunnelers and Redmin has an excessive amount of Vernukes, beasts that follow the wild dog behavior and are capable of digging through walls. Nar Shaddaa has too many civilian residences underground. Any possible places are always investigated.