The armor unlocks for Halo 5: Guardians which players can acquire from Halo: The Master Chief Collection have been revealed over in IGN.
The site was given an early look at the armor which is unlocked by earning Achievements The Master Chief Collection.
The armor offerings are: MARK VI [GEN1] Mjolnir armor, MARK VI [GEN1] SCARRED, HELIOSKRILL crafted by a Sangheili prodigy, and NIGHTFALL.
Images shown on the site are early high-res images and not “representative of the final in-game model.”
If you head over through the article link, you can find out which Achievements you need to earn in order to sport the aforementioned armor.
Halo: The Master Chief Collection arrives on Xbox One November 11