Installation

Installation is a common prefix to Forerunner structures.

Locations

 * Installation 00 (also known as The Ark and Lesser Ark)
 * Installation 01 (also known as Beta Halo)
 * Installation 02 (also known as Epsilon Halo)
 * Installation 03 (also known as Gamma Halo)
 * Installation 04 (also known as Alpha Halo)
 * Installation 05 (also known as Delta Halo)
 * Installation 06 (also known as Kappa Halo)
 * Installation 07 (also known as Zeta Halo)
 * Installation 08 (Installation 04's first replacement)
 * Installation 09 (Installation 04's second replacement; also known as Anders' Halo)
 * Line Installation 1-4
 * Line Installation 9-12

Events

 * Battle of Line Installation 1-4 - The conflict on a moon in Line Installation 1-4 (August 2552)
 * Battle of Installation 04 - The conflict that took place on Alpha Halo (September 19-22, 2552)
 * Battle of Installation 05 - The conflict that took place on Delta Halo (November 2-4, 2552)
 * Battle of Installation 00 - The last known battle of the Human-Covenant War (December 11, 2552)
 * Battle of Installation 03 - The conflict that took place on Gamma Halo between the New Phoenix Incident and the Battle of New Phoenix.
 * Skirmish on Installation 03 - The conflict that took place on Gamma Halo (July 25-26, 2557)
 * Second Ark Conflict - A second conflict that took place on Installation 00, and briefly on Installation 09 (March 28, 2559 - Ongoing)