FLEETCOM Sector Three/Subvolume D-6

Subvolume D-6 is an area in FLEETCOM Sector Three. In 2543, Vice Admiral Preston Jeremiah Cole requested that the Reach Logistics Office do a detailed stellar survey of the system to prepare for the impending Battle of Psi Serpentis.

List of appearances

 * Halo: Evolutions - Essential Tales of the Halo Universe
 * ''The Impossible Life and the Possible Death of Preston J. Cole