RAIDER-class Mjolnir

The MJOLNIR Powered Assault Armor/Raider is a variant of the MJOLNIR Powered Assault Armor [GEN2] and utilized by SPARTAN-IV supersoldiers. The helmet bears the visage of a Japanese samurai mask.

Development history
The MJOLNIR/Raider variant was developed by Imbrium Machine Complex. It was tested at Ankara, Mare Imbrium on Luna. IMC representatives claimed that the armor's feral appearance was designed to weaken the morale of opposing forces.

During the Battle of Reach, a Spartan team was sent to acquire and protect data relating to improving MJOLNIR armor, sending the data to a remote archival station. In 2557, four years later, the data that was sent to the archival station was found again, and was discovered to be information about the Raider armor.

Halo 4
Unlock: This armor is unlocked by inputting the Classified Codes on the Xbox 360 Waypoint. Available skins: DSTT(Distort)
 * Description: Per IMC, this armor's feral design is intended to weaken the opposition's morale.
 * The DSTT skin is obtained by inputing the Classified Codes on the Xbox 360 Halo Waypoint

Halo 5: Guardians
Unlock: REQ pack

Behind the scenes
The base version of the Raider's samurai-inspired aesthetic is similar to that of the HAYABUSA armor from Halo 3. The armor is acquired through Halo Waypoint after completing the first three chapters of Episode One of Spartan Ops and entering a series of hidden codes.

The "DSTT" variant is also possible to unlock via Waypoint, though each piece has different requirements. Unlocking the shoulders requires completing the first 15 episodes of Spartan Ops on Legendary difficulty, as well as finding several glyphs on the maps and in Waypoint forum posts. The torso requires beating the campaign solo on Legendary, as well as finding glyphs in "Section 3" postings and forum posts. The helmet requires 1,000 completed War Games matches, as well as several glyphs hidden in the maps of the Crimson Map Pack and on forum posts.

List of appearances

 * Halo 4
 * Halo 5: Guardians