S-III


 * Note: This article is about the folder called S-III. Click here if you are looking for the Spartan-III program or here if you were looking for ONI's Section-III

S-III was a folder on Colonel James Ackerson's computer at CASTLE Base on Reach. When Dr. Halsey hacked the computer, she discovered the folder. Contained in the S-III folder was the following:

CPOMZ
The CPOMZ file contained star charts. Halsey used the CPOMZ star chart to locate the Spartan-IIIs and the planet Onyx. The letters CPOMZ are also an acronym for: Chief Petty Officer Mendez (CPOMZ), the man who trained the SPARTAN-IIs at a young age. This lead Halsey to believe that Chief Petty Officer Mendez was somehow mixed up with Ackerson.

KING UNDER THE MOUNTAIN
The KING UNDER THE MOUNTAIN file contained:


 * Information on the Forerunner artifact found on Sigma Octanus IV.
 * A full map of the CASTLE base facility on Reach that included a path to the immense Forerunner facility as well as the Forerunner Crystal, beneath the Menachite Mountain.
 * A map of the complete survey of Mechanite Mountain, where the original mineral mines were located before they were taken over by ONI. Menachite Mountain was an extinct volcano which is where Dr. Halsey found the Forerunner Crystal artifact.

Spartan-IIs
In the folder she found extensive records of the SPARTAN-II Program and its members. This indicated that Ackerson had knowledge of and an interest in the supposed top secret Spartan-II program.