From Halopedia, the Halo wiki
Research on the Forerunner shield world now called Trevelyan has cultivated numerous findings for the Office of Naval Intelligence. One of the most practical has been the discovery of a native armor system utilized by Forerunner Prefects late in their civilization's history. The Watershed Division leveraged local Huragok to reverse-engineer the original designs, grafting the abandoned armor system into baseline Mjolnir standards for Spartan-IV use. It was tested at Denegroth, West Conamara, on Europa.
Unlock: Purchase the Infinity Armor Pack. This is not usable in Spartan Ops.
Halo 4 skin
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