After the Human-Covenant war, the Ordnance Commission, held at the Damascus Testing Facility, approved the long-term aggressive focus on defense-centric armor systems. The MJOLNIR Powered Armor/Defender is the most notable result of this research.
- It is unlocked by reaching the rank of SR-24, and the "Control" variant is unlocked by completing the Bullet in the Brain commendation.
- The helmet is a redesigned JFO helmet from Halo: Reach.
- The Champions Bundle includes the "Column" skin for the armor.