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Johnson, as seen on the cover of the novel Halo: Contact Harvest.

Sergeant Major Avery Junior Johnson (SN: 48789-20114-AJ ) was a Human senior non-commissioned officer who served with the UNSC Marine Corps during the Insurrection and Human-Covenant war. Avery Johnson was a highly trained Marine, serving with various units of the Naval Special Warfare Command, including the highly classified ORION Project.


Johnson played a vital role during the course of the Great War and fought at major battles such as Harvest, Reach, Earth, and the events at Installation 04, 05, and at the Ark. He was key in forming an alliance between the Humans and Sangheili following the Great Schism and the outbreak of the Flood in November 2552. Ultimately, Johnson was killed in an attempt to prematurely activate a replacement Halo by 343 Guilty Spark. He was honored by Fleet Admiral Sir Terrence Hood twice, first with the Colonial Cross just prior to the invasion of Earth; then just months later, alongside his fallen comrades, at the Hillside Memorial in Voi, Kenya.

He was best known for his typical "gung-ho" attitude towards life, personal goals, and as a leader to his fellow Marines. This earned him a reputation, respect, and admiration from his subordinates and superiors alike. However, his eccentric behavior took a liking to "flip music", a style of music similar to the heavy metal from the 21st century. Avery Johnson is also noted as being one of a select few outside of the SPARTAN-II Program to befriend Master Chief Petty Officer John-117, whom he fought alongside multiple times throughout the final months of the Human-Covenant War; ultimately dying in his arms after being critically injured.

           Halo Heroes

United Nations Space Command
Main: John-117 | Thel 'Vadam | Sergeant Johnson | Cortana |

Branches: UNSC Marine Corps | ODST |
Officers: Jacob Keyes | Miranda Keyes | Avery Johnson | Thomas Lasky | Terrence Hood |
Personnel: Chips Dubbo | Rookie | Edward Buck | Veronica Dare | John Forge | James Cutter | Ghost | O'Brien | Franklin Mendez | Foe Hammer |
SPARTAN-II: James-005 | Jai-006 | Daisy-023 | Joshua-029 | Samuel-034 | Kurt-051 | Jorge-052 | Linda-058 | Solomon-069 | Arthur-079 | Kelly-087 | Jerome-092 | Frederic-104 | John-117 | Cal-141 | Nicole-458 | SPARTAN-1337 (non-canon) |
SPARTAN-III: Noble Team (Carter-A259, Kat-B320, Jun-A266, Emile-A239, SPARTAN-B312, Thom-A293) |
SPARTAN-IV: Jameson Locke | Edward Buck | Holly Tanaka | Olympia Vale | Edward Davis | Sarah Palmer | Paul DeMarco | Taylor Miles | Kojo Agu | Michael Crespo |

Sangheili: Henry the Friendly Elite | N'tho 'Sraom | Rtas 'Vadum | Swords of Sanghelios | Thel 'Vadam | Usze 'Taham

Other: Cortana | Vergil the Friendly Engineer

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