Might be old news for some but here are the names and descriptions for the helmets and armor.
Indomitable (Jorge)
Helmet Description: The INDOMITABLE helmet is a rare sight on the battlefield, and is usually a sign the UNSC has authorized weapons of mass destruction.
Armor Description: Created to save lives and not to take them, the INDOMITABLE is an engineering and explosives ordnance disposal Mjolnir variant. Its combat effectiveness is simply fortuitous.
Wrath (Emile)
Helmet Description: The Spartan branch contract for WRATH helmets was extremely precise and prescriptive regarding the pattern and method of reproduction for the death’s head engraving.
Armor Description: Formally an upgrade of existing Mark V EVA suits, the WRATH project was actually cover to develop a new Mjolnir variant specifically tailored to the needs of future Headhunter teams.
Vigilant (Jun)
Helmet Description: The full extent of the VIGILANT’s surveillance and stealth capabilities remain highly classified. Observers have speculated the suit includes a new reconnaissance and fire control system for directing orbital artillery strikes.
Armor Description: The VIGILANT was originally a one-off upgrade for an unnamed VIP within Spartan branch. Not intended for production, interest in the suit’s feature set among Spartan scout-snipers has led to several being assembled for full evaluation.
Intruder (Kat)
Helmet Description: The INTRUDER helmet features a full-featured Command Network Module and multi-channel drone controller. The drone controller interfaces directly with Unified Ground Command (UNICOM) kill box management and aerospace deconfliction systems.
Armor Description: INTRUDER armor was commissioned by Spartan branch as part of a research initiative seeking to leverage synergistic outcomes between specialized Mjolnir suits