Battle of Installation 00 (2559)

The Second Battle of Installation 00 was a large battle fought between the UNSC forces of the, Atriox's Banished forces and the residing Sentinels of Installation 00.

Background
In 2531, the UNSC Spirit of Fire had traveled to and fought the Covenant Empire at a Forerunner Shield World that housed a fleet of Forerunner ships. The Spirit destroyed the world, but at the cost of their Shaw-Fujikawa Translight Engine, leaving them adrift.

Arrival
The Spirit of Fire eventually found its way to Installation 00, 28 years later. Upon arriving, they discovered a ruined UNSC base creating a distress signal. Red Team scouted the base out, only to encounter Atriox. In the ensuing skirmish, Douglas-042 was injured, Alice-130 became MIA, and the AI Isabel was recovered from the base.

Soon after, Jerome-092 and some UNSC forces, assaulted Decimus' salvage operation on the Southern Spire and destroyed it.