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Operation: PROMETHEUS Edit
- Main article: Operation: PROMETHEUS
On July 27, 2537, a major operation was conducted against the forces stationed at K7-49. SPARTAN-III Alpha Company managed to disable enough of the reactors on K7-49 to allow for sufficient cooling and permanently shut down the Covenant's construction operation. Unfortunately all 300 of the Spartans were killed in the process. K7-49 was then abandoned by the Covenant.
It had a system of artificial volcanic activity created by several high-output plasma reactors. These plasma reactors were used to refine metal used in the construction of Covenant warships. A network of gravity beams then transported refined alloy to the surface to be welded into Covenant battleships.