Not having an Encyclopedic knowledge of the Halo Universe, I was wondering how much of the blurbs for Spartan Customization Items (Helmet, Armor, VISR) were new for Halo 5 that has yet to be filled out. For example, whether the Legendary VISR description of the Beta-5 Asymmetrical Warfare unit, the Wetwork description of Delta-6 hit squads, and some of the armament manufacturers exist in other literary content.
A lot of these thing had appearances in Halo 4, some date back to Halo 3, but where you want to go is Halopedia, they have a lot of good info that I won’t have space for here.