The Halo 5 Armor set, Hellcat, is the armor that was worn by ancient Humans. I believe another Waypoint user suggested this idea a while back and it looks like it has made an appearance!
I don’t have an image of Hellcat, but if you look at the full list of helmets, you can see it.
Still doesnt explain why the descriptions basically says, “We found some stuff and put it together cause why not?”
What company made this? Future -Yoink!-?
And did it get used in the UNSC?