HELIOSKRILL-class Mjolnir

HELIOSKRILL-class Mjolnir is a variant of the MJOLNIR Powered Assault Armor [GEN2] manufactured by Kolaar Manufactorum.

Design details
The Helioskrill armor is fully compatible with all Mjolnir GEN2 techsuits, and implements even heavily classified and encrypted Mjolnir neural interface protocols, despite the Sangheili prodigy having only minimal UNSC assistance available to her. Other systems are modified versions of those found in traditional Sangheili combat harnesses, such as the pinch fusion reactor and nanolaminate armor plates.

Development history
The first – and so far only – Mjolnir variant not designed by humans, and named after a predatory creature native to Sanghelios, the Helioskrill's pattern-language was composed by a Sangheili artisan-armorer of unsurpassed brilliance and insight in the arts of war, inspired to test her skill against the best that humanity could muster. The Helioskrill armor was manufactured by Kolaar Manufactorum and is available in limited numbers to the UNSC through an undisclosed agreement with them.

Usage
The Helioskrill armor remains one of the most exotic Mjolnir sets in the Spartan armory. Spartan commanders use the possibility of its acquisition as an incentive to drive their troops to victory in War Games exercises and historical simulations.

Halo 5: Guardians
Helioskrill was first introduced as an armor set in Halo 5: Guardians. The Argonaut set has two alternate skin designs; Bloodgorger and Warbound - both of which were added in the Hammer Storm update.

Production notes
During the production of Halo 5: Guardians, the armour was internally codenamed A012.

Trivia

 * The Helioskrill armor bears a strong resemblance to the Arbiter body armor.
 * The Warbound skin appears to be loosely based on Jul 'Mdama's armor.

Normal gallery
 File:H5G-Helioskrill concept.jpg|Concept art of the armor for Halo 5: Guardians. File:Helioskrill.png|Development render of the Helioskrill armour, lacking shoulder pauldrons. File:H5GBRedStart.png|A Spartan-IV wearing Helioskrill armor during a War Games match on Truth in the Halo 5: Guardians Multiplayer Beta. File:H5GBRedVictory.png|A Spartan-IV wearing Helioskrill armor winning a game on Truth. File:H5GBBreakout-Crossfire.png|A Spartan-IV wearing Helioskrill armor during a game of Breakout on Crossfire. File:H5G-helioskrill-warbound.png|Render of the Helioskrill armour with the Warbound skin. File:H5-Helioskrill-GameRender.png|Render of the Helioskrill armor with the Bloodgorger skin. File:H5-Waypoint-Helioskrill.png|Helioskrill armor in the Waypoint Armory. File:H5G-Helioskrill&Recruit.jpg|A Spartan-IV wearing a Helioskrill helmet in Halo 5: Guardians. File:H5G-Helioskrill&Marauder.jpg|A Spartan-IV wearing Helioskrill on Torque. File:Merch-Mattel-Exclusive-HelioskrillBackblister.jpg|Back blister of the 2016 SDCC Helioskrill box.

List of appearances

 * Halo 5: Guardians
 * Halo: Official Spartan Field Manual