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- Pawel Czernek enters active service with the UNSC Marine Corps.
- Concord is attacked by the Covenant; the Venator MJOLNIR [GEN1] variant gains prominence in the attack.[1][2]
- Gray Team is deployed on a mission against a Covenant facility within humanity's former territory.[3]
- The Battle of Meridian takes place. Meridian is glassed and Chalybs Defense Solutions facilities on the moon are abandoned. The Covenant discovers a Luminary on Meridian that leads to Earth.[4]
- January 17: UNSC "smart" artificial intelligence Iona begins service.
- February 19: The SPARTAN-IIIs of Gamma Company begin their week-long augmentation process on the UNSC Hopeful as part of Project CHRYSANTHEMUM.[5]
- May 8: Dr. Catherine Halsey undergoes the Hemley & Aubourn Behavior Analysis; the results make ONI increasingly wary about her reported unreliability.[6]
- November 24: Mark V[B], the initial production model of the Mark V MJOLNIR armor,[7] enters service.[8]
- December 22: The Car & Pilot Magazine releases its December 2551 Edition. This includes a review of the new 2553 edition of the Civilian "Hog".[9]
Sources
- ^ Halo 4, MJOLNIR/Venator armor description
- ^ Halo Waypoint - Canon Fodder: Bits & Pieces
- ^ Halo Waypoint: Catalog Interaction
- ^ Halo 2: Anniversary, Terminal 1
- ^ Halo: Ghosts of Onyx, page 101
- ^ Data Drop 3
- ^ Halo Encyclopedia, page 94 (2011 edition)
- ^ Bungie.net: Bungie Weekly Update, 1/29/10
- ^ Bungie.net: AMG Civilian Hog Review