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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
- 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.
- Halo 5: Guardians (First appearance)