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Spartan IV

Mjolnir GEN2 Powered Assault Armor

“With the addition of SPARTAN-IV super-soldiers into the Office of Naval Intelligence’s expansive military scheme, the Materials Group has spearheaded the next generation of MJOLNIR Powered Assault Armor, officially dubbed ‘GEN2.’ Now produced by half a dozen military and privately contracted manufacturers, the newest format of ONI’s prodigious armor technology comes with ad hoc modification systems, which, in addition to Armor Abilities, allows for Tactical Packages and Support Upgrades. These enhancements give Spartans the opportunity to improve their combat performance as well as personalize their actions in the field.”
— Halo Waypoint description

The Mjolnir GEN2 Powered Assault Armor is the newest generation of the Mjolnir Powered Assault Armor, specifically designed for the SPARTAN-IV program, and introduced following the conclusion of the Human-Covenant war of 2525-2552.

This armor was not designed or created by Dr. Catherine Halsey, but was instead created by the Materials Group. It is produced by dozens of manufacturers, both private and militarized. Aesthetically, the second generation of Mjolnir Armor differs from the first generation, most noticeably in regard to its streamlined edges, pronounced power pack design and increased customization options.

Unlike the previous installments of Mjolnir Armor, the ceramic-metallic alloy that composes the main armor plates is much more versatile, and can be attached to the metal-alloy under-suit within a matter of seconds (as opposed to the original MK. IV armor, which took SPARTAN-IIs several hours and a team of technicians to don). One of the most drastic physical changes between GEN2 and GEN1 Mjolnir Armor is the under-suit. It seems that SPARTAN IV personnel wear part of their under-suit at all times so they can be readied for battle more quickly. GEN2 armor boasts a more streamlined and form-fitting metal-alloy under-suit, with the sheathing of the neck now extending until just under the jaw. Whether this design modification was implemented in regard to pressurizing the suit in vacuum is unknown. The outermost layer of the under-suit has also been modified, now resembling a layer of scales.

With regard to armor customization, the second generation of Mjolnir Armor has a great degree of modularity, with alternative helmets, shoulders, chest plates, legs, forearms and visors available. Moreover, SPARTAN-IVs are able to tune their armor using Tactical Packages and Support Upgrades to better suit operational requirements.

Although the GEN2 armor meant a radical simplification of the Mjolnir platform, to the point it could be mass-produced, by October 2558 some operatives in the Spartan Operations branch were dissatisfied with its minimal performance improvement over the old GEN1 systems. With that reason in mind, the UNSC decided to develop and manufacture GEN2's successor, the Mjolnir Powered Assault Armor (GEN3).



  • The top half of the undersuit is colored the same as the primary color, unlike all other Halo games.
  • Since Mjolnir/Mark VII is available, it would seem that it made it to mass production stage.
  • The motion tracker of the Mjolnir GEN 2 armor is more detailed than that of the GEN 1's. The GEN 2's displays vehicles with their approximate shape, not just as red or yellow dots.
    • Enemies with Active Camouflage and unoccupied vehicles appear blue.
  • Mjolnir GEN 2 armor is stronger, faster, and lighter than Mjolnir GEN 1 armor.[1]