List of REQ cards/Helmets

From Halopedia, the Halo wiki

Helmets, like Armor can be worn but they serve no purpose beyond cosmetics.

Image Name Rarity Description
REQ Helmet Anubis.png Anubis Common The ANUBIS helmet's enhanced sensor suite benefits from collaboration with allied Sangheili, though ONI security paranoia has slowed technology integration.
REQ Card - Athlon.png Athlon Common The ATHLON helmet's inner layer uses a magnetorheological dampening system perfectly tuned to the peculiarities of Spartan physiology.
REQ Card - EVA.png EVA Common The EVA helmet can be paired with all milspec hardshell and mechanical counterpressure suits.
REQ Card - Hellcat.png Hellcat Uncommon Tests with Spartan-II veterans show near-perfect synchronization with HELLCAT armor, but compatible Spartan-IV operators require an acclimatization period and tweaks to their augmentation maintenance before deployment.
REQ Card - Legionnaire Alaris.png Legionnaire Alaris Uncommon Creating a Mjolnir variant from scratch was once extremely difficult, expensive, and fraught with risk. The LEGIONNAIRE presages a democratization of Mjolnir technology that may prove impossible to control.
REQ Card - Recruit Marked.png Recruit Marked Uncommon Decades of combat experience with Mjolnir suits informed the design and electronics hardware architecture of the RECRUIT helmet.
Replace this with the actual REQ card image when we have that! Buccaneer Rare BUCCANEER helmets use off-the-shelf components, but the casing is custom made. The HUD is also compatible with military VISRs, employing ingenious hacks to bypass liscencing locks.
REQ Card - Mako Chthonic.png Mako Chthonic Rare Though offered as a complete GEN2 Mjolnir system for the Spartan branch, adoption of the MAKO helmet by Army combat divers has proven to be more profitable.
REQ Card - Recon BDA.png Recon BDA Rare The heavily classified Auspex battlenet uplink in the RECON helmet contains the latest counter-cyberintrusion and firewall routines from ONI.
REQ Helmet Scout Decoy.png Scout Decoy Rare Materials Group tested various form factors of the SCOUT helmet before settling on a sleek shape reminiscent of the MARK VI [GEN1] model.
REQ Card - Argus Arestor.png Argus Arestor Legendary/Mythic ARGUS helmets feature the most advanced human-centric information fusion systems ever placed in a mobile combat platform.
REQ Card - Helioskrill.png Helioskrill Legendary/Mythic Such is the skill of the HELIOSKRILL's artisan-armorer designer that even the heavily classified and encrypted Mjolnir neural interface protocols were reverse engineered.
REQ Card - Helljumper.png Helljumper Legendary/Mythic Though development delays kept it from consideration by the UNSC Marine Corps, only minor modifications were needed to make the HELLJUMPER helmet fully compatible with GEN2 Mjolnir.
REQ Card - Hermes.png Hermes Legendary/Mythic Custom designed by The Watershed Division, the HERMES neural interface requires a lengthy synchronization process before it can be used.
REQ Card - Technician Override.png Technician Override Legendary/Mythic Effectively a cutting-edge techscanner array packed into a compact package, the aptly-named TECHNICIAN helmet allows the wearer to function as a mobile diagnostic center.