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Production overview




General combat


"I rewrote your suit's firmware while you were out."
— Cortana shortly before the Battle of Requiem.[3]

Mark VI MOD is a MJOLNIR armor variant of MJOLNIR Powered Assault Armor/Mark VI modified by Cortana[1] while stranded on the UNSC Forward Unto Dawn,[3] with a MJOLNIR Powered Assault Armor [GEN2] variant produced by ONI's Watershed Division.[2]

GEN1 overview[edit]

Design details[edit]

Mark VI MOD closely resembles an earlier line of Mark IV armor.[1] The suit's firmware was modified, altering the HUD[3] and its compatibility with Covenant armor plugins.[4] Mark VI MOD also includes a built-in thruster system enabling John-117 to slow his descent while in free fall and propel himself forward in zero gravity.[5]

Development history[edit]

Referred to as Mark VI MOD,[6] the Mark VI Mjolnir armor worn by MCPO John-117 following the end of the Human-Covenant War was updated by UNSC AI Cortana[1] during their four years and seven months of cryosleep aboard the UNSC Forward Unto Dawn.[3] Cortana used manufacturing and diagnostic systems to repair and alter John's armor.[7][8]

During her time on the Dawn, Cortana also updated the suit's firmware,[3] and during their time on Requiem, Cortana added a soft patch to the firmware to allow compatibility with Covenant armor plugins.[4]


Mark VI MOD was exclusively used by John-117, first being used during the Battle of Requiem after he woke up on the UNSC Forward Unto Dawn on July 21, 2557.[3]

This armor was heavily damaged during the Mission to Installation 03 on July 26, 2557[9] and replaced by a similar GEN2 Mjolnir armor variant.[10]

GEN2 overview[edit]

Design details[edit]

Like most GEN2 MJOLNIR suits in 2558 the GEN2 Mark VI MOD had an extensive built-in thruster system far more advanced than the thrusters built into the GEN1 Mark VI MOD. These allowed for extensive movement options both in zero gravity and in-atmosphere environments.[11]

Development history[edit]

Following the events on Gamma Halo, John-117 upgraded to the GEN2 platform.[10][2] This suit is still designated Mark VI MOD.[12] The upgrade was made by ONI's Watershed Division.[13] The GEN2 Mark VI MOD shoulder pads were adapted into and mass-produced for the GEN3 Mark VII armor, being renamed as UA/AHALA. They were designed by Dr. Catherine Halsey and Watershed Division, and manufactured by the Materials Group.[14]


John-117 used the GEN2 Mark VI MOD extensively from shortly after his Installation 03 deployment to after the Battle of Genesis.[15] During the Battle of Meridian, the helmet's visor was cracked during a fight between John-117 and Spartan-IV Jameson Locke.[16] Shortly before Operation: WOLFE John-117 had begun wearing a GEN3 version of the Mark VI.[17][18]

In-game information[edit]

Shoulder Manufacturer Lore Rarity Unlock Requirements
Icon for the left UA/AHALA shoulder pad.Icon for the right UA/AHALA shoulder pad.
Materials Group Mass-produced implementation of the Mark VI GEN2 MOD pauldrons designed by Dr. Catherine Halsey and Watershed Division. Legendary
  • Purchase "Aquahex" Super Bundle from the Shop for 2,200 cR
  • Purchase "Security GEN3" Bundle from the Shop for 1,200 cR (900 cR on sale)


Various parts from the Mark VI MOD are present on the NOBLE armor set in Halo 5: Guardians, most notably the gauntlets, boots, and knee guards.


Halo 4[edit]

Halo 5: Guardians[edit]

Halo Infinite[edit]


List of appearances[edit]


  1. ^ a b c d Halo 4: The Essential Visual Guide - Characters, Campaign, Master Chief, page 10
  2. ^ a b c Halo Waypoint: Canon Fodder - Conventional Warfare
  3. ^ a b c d e f Halo 4, campaign level Dawn
  4. ^ a b Halo 4, campaign level Requiem
  5. ^ Halo 4, campaign level Shutdown
  6. ^ MegaConstrux Master Chief Collection
  7. ^ YouTube - The Science Behind The Halo Series
  8. ^ Halo Canon - Interview
  9. ^ Halo: Escalation, issue 10
  10. ^ a b Jeff Easterling's Twitter - GEN2; in Escalation
  11. ^ Halo 5: Guardians, campaign level Blue Team
  12. ^ Halo 5: Guardians Limited Edition, Spartan Locke's classified orders
  13. ^
  14. ^ Halo Infinite, Armor Hall: UA/AHALA - Shoulder Description "Mass-produced implementation of the Mark VI GEN2 MOD pauldrons designed by Dr. Catherine Halsey and Watershed Division."
  15. ^ Halo 5: Guardians, campaign level Guardians
  16. ^ Halo 5: Guardians, campaign level Unconfirmed
  17. ^ Halo Infinite: Memory Agent
  18. ^ Halo: Shadows of Reach