From Halopedia, the Halo wiki
Installation is a common prefix to Forerunner structures.
- 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
- 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)
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