I Might have missed some challenges which unlock armor because the Req system doesn’t seem too efficient and it’s bugging me. The Mjolnir Armor + The Scarred version and the Nightfall armor are easy to get so i want to know if there is any like those i could do like complete the campaign on legendary or find skulls please reply if you know any challenges.
Mjolnir Mark VI Armor + Scarred version- Complete the Cairo station Mission on Halo 3 and get the achievement (Normal+ Difficulty)
Nightfall- Watch a Nightfall episode on the Halo App on Xbox One.