Only Spartans who have mastered themselves, bound their wrath and passion within a shell of hyperdense steel fueled by starfire, are granted access to the ACHILLES. Lesser warriors will lose themselves in a storm of blood.
— Armor Description[2]

Mjolnir Powered Assault Armor/Achilles is a variant of Mjolnir [GEN2] used by SPARTAN-IVs. It was released in the Infinity's Armory update.[1]

Development and HistoryEdit

The Achilles' helmet has a powerful A.I. integrated into it that disrupts the wearer. Only experienced SPARTANs with strong loyalty and duty can keep the A.I. at bay.[3]


  • The armor is unlocked by mastering all level 3 Spartan Company commendations, and the helmet is unlocked by mastering all level 5 kill commendations.
  • The armor is named after the Greek hero Achilles, who fought in the Trojan War.



  1. 1.0 1.1 1.2 Halo Waypoint - Infinity's Armory Preview
  2. Halo Waypoint - Infinity's Armory
  3. Halo 5: Guardians - In-game descriptions
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