Helmet Armor

Below you will find every helmet armor set available in Halo Reach. There are 21 sets in all, with each set containing several variations.

Mark 5 {B}

The Mk. V {B} helmet is one of several ‘privatized’ variants of previously classified war materiel.

From left to right:

• Base: Entered service in 2551; UNICOM/ SPECWAR/ GroupTHREE has been the sole adopter.
• UA: Up-armored variant of the base Mk. V {B} pattern helmet.
• UA/HUL: Up-armored variant with hardened uplink module for MILINT acquisition.

CQC

Predecessor to current MJOLNIR/C variant; less rigid design allows for field upgrades.

From left to right:

• Base: Entered service in 2548; standard equipment for boarding actions and MOUT.
• CBRN: For operations in hazard zones.
• UA/HUL: Up-armored variant with hardened uplink module for MILINT acquisition.

ODST

The ODST helmet is one of the most recognizable faces of the UNSC’s Special Forces.

From left to right:

• Base: Many technologies initially developed for MJOLNIR have gained widespread adoption.
• UA/CNM: Up-armored variant with Command network module.
• CBRN/HUL: For operations in hazard zones; hardened uplink module.

HAZOP

Some operations are considered hazardous even for a fully armored Spartan.

From left to right:

• Base: Mk. V helmet variant for use in hazardous environments.
• CBRN/HUL: For operations in extremely hazardous environments; hardened uplink module.
• CNM-I: Command network module-Improved; upgraded variant of the standard issue SNM unit.

EOD

Developed at the Damascus Materials Testing Facility on X Ceti 4; entered service in 2531.

From left to right:

• Base: Designed specifically to reduce likelihood of decapitation.
• CNM: Command network module; standard issue to UNSC Special Forces unit commanders.
• UA/HUL: Up-armored variant with hardened uplink module foor MILINT acquisition.

OPERATOR

Developed exclusively for the ONI’s Beta-5 Asymmetrical Action Group.

From left to right:

• Base: The B5D Facility has been the site of many unique development programs.
• CNM: Command network module; issue to UNSC Special Forces unit commanders.
• UA/HUL: Up-armored variant with hardened uplink module for MILINT acquisition.

GRENADIER

The Mk. IV [G] variant is an up-armored prototype based on the basic Mk. IV helmet.

From left to right:

• Base: The Mk. IV [G] variant is an up-armored prototype based on the basic Mk. IV helmet.
• UA: Up-armored variant of the [G] prototype helmet.
• UA/FC: Up-armored variant with command network and external hardened uplink modules.

AIR ASSAULT

The MJOLNIR/AA variant was developed as an improvement of the venerable ODST helmet.

From left to right:

• Base: Entered service in 2535; the MJOLNIR/AA variant is exclusive to Army airborne units.
• UA/CNM: Up-armored variant with command network module.
• FC-I: Command network module-Improved; external hardned uplink. A favorite of Pathfinder units.

SCOUT

The MJOLNIR VI/S variant was developed and tested at the ONI’s Ordance Testing Facility.

From left to right:

• Base: The SCOUT and RECON projects were part of the secret MJOLNIR PAA/RS program.
• HU/RS: Hardened uplink / remote sensor package; A favorite of Sniper units.
• CBRN/CNM: For operations in hazard zones; command network module.

EVA

The MJOLNIR V [V] variant was developed and tested at the UNSC facilities in Lister, Aigburth, Ganymede.

From left to right:

• Base: The EVA helmet was developed using data gathered from the Summa Deep Space Incident.
• CNM: Command network module; standard issue to UNSC Special Forces unit commanders.
• UA/HUL[3]: Up-armored variant with hardened 3rd generation uplink module for MILINT acquisition.

JFO

Designed and tested at Beweglichrustungsysteme, this helmet is fully compatible with all armor systems.

From left to right:

• Base: Beweglichrustungsysteme was home to many projects attached to the MJOLNIR program.
• HUL-I: External hardened uplink-improved; upgraded variant of the standard issue HUL unit.
• UA[3]: Up-armored variant of the base Mk. V [J] pattern helmet.

Commando

Developed at the UNSC’s Special Warfare Center, this helmet is compatible with all armor systems.

From left to right:

• Base: The Mk. V/K helmet was developed at the Special Warfare Center in Songnam, Hangak.
• CBRN/CNM: For operations in hazard zones; command network module.
• UA/HUL[3]: Up-armored variatn with external command network and hardened 3rd generation uplink modules.

EVA {C}

The MJOLNIR V[V] variant was developed and tested at the UNSC facilities in Lister, Aigburth, Ganymede.

From left to right:

• Base: The EVA helmet was developed using data gathered from the Summa Deep Space Incident.
• CNM: Command network module; standard issue to UNSC Special Forces unit commanders.
• UA/HUL[3]: Up-armored variant with hardened 3rd-generation uplink module for MILINT acquisition.

MJOLNIR Mk. V

Issued in November 2551, this helmet is fully compatible with all current armor systems.

From left to right:

• Base: The Mk. V helmet is essentially the Mk. IV upgraded to function with MJOLNIR’s new shield system.
• CNM: Command network module; standard issue to UNSC Special Forces unit commanders.
• UA[3]: Up-armored variant of the base Mk. V pattern helmet.

Recon

The MJOLNIR, Prototype [R] is being developed concurrently with the Mark VI MJOLNIR PAA.

From left to right:

• Base: Data gathered from these field tests will be used to improve the final production model.
• HUL: External hardened uplink for MILINT acquisition; required for sensitive OPs.

MJOLNIR Mk. VI

This is the prototype for the Integrated Communications Helmet, MJOLNIR Mk. VI.

From left to right:

• Base: Data gathered from these field tests will be used to improve the final production model.
• FC-I[2]: External command network and hardened 3rd-generation uplink modules.
• UA/HUL-I: Up-armored variant with hardened 2nd-generation uplink module for MILINT acquisition.

GUNGNIR

The Mk. V {G} was developed as part of the GUNGNIR Program alongside the MG G/GNR Weapon system.

From left to right:

• Base: The GUNGNIR Program involved the development of the many supplementary armor systems.
• HU/RS: Hardened uplink/remote sensor package. A favorite of sniper units.
• CBRN: For operations in hazard zones.

Security

The MJOLNIR (M) variant helmet was manufactured at the Misriah Armories facility on Mars in 2528.

From left to right:

• Base: All (M) variant helmets have been upgraded to be compatible with all current issue armor systems.
• UA/HUL: Up-armored variant with hardened uplink module for MILINT acquisition.
• CBRN/CNM: For oeprations in hazard zones; command network module.

Military Police

The MK. V {MP} is a shared asset with Beta-5 Security; as such, sensor upgrades are many and varied.

From left to right:

• Base: The Mk. V {MP} variant is one of just a handful of assets shared between branches of the armed forces.
• CBRN/HU/RS: For operations in hazard zones; hardened uplink/remote sensor package.
• HU/RS/CNM: Hardened uplink/remote sensor package with command network module.

CQB

The MJOLNIR/C variant was developed and tested at UNSC facilities in Essen and Songnam, respectively.

From left to right:

• Base: Developed at Beweglichrustungsysteme and tested at the UNSC’s Special Warfare Center.
• HU/RS/CNM: Hardened uplink/remote sensor package with command network module.
• UA/HUL: Up-armored variant with hardened uplink module for MILINT acquisition.

Pilot

Adopted by the UNSC Air Force in 2542, this helmet is compatible with all current armor systems.

From left to right:

• Base: Although it bears some similarities to the SPI helmet, they are purely cosmetic in nature.
• HUL[3]: Third-generation external hardened uplink for MILINT acquisition; required for sensitive OPs
• UA/HUL[3]: Up-armored variant with hardened 3rd-generation uplink module.
• HAUNTED: Happy friggin’ Halloween!