Halo Nation


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RKD Group[1] was a think-tank based on Earth.[2]


They built and designed a powered combat armor similar in many ways to the MJOLNIR pioneered by Doctor Catherine Halsey, though with many differences. The project was codenamed Project HAYABUSA.[2]

By 2558, RKD allows its Legionnaire Armour to be licensed out to smaller companies who are attempting to break into the powered armour industry.[1]


  • RKD's Hayabusa Armor is based on that of Ryu Hayabusa of the Ninja Gaiden series of video games. It is therefore possible that RKD is an abbreviation of "Ninja Ryukenden," the original name of that series.


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