Command Network Module

The Command Network Module or CNM, is a communication device utilized by the United Nations Space Command, commonly adopted as an external helmet attachment.

Design details
The Command Network Module allows users to communicate and synchronize with the UNSC battle network in real-time. The connection to the battlenet can be further enhanced by integrating a Hardened Uplink to the CNM.

Usage
Different Command Network Modules have been observed across branches and ranks within the UNSC, including UNSC Army troopers, Orbital Drop Shock Troopers, and Spartans.

After the Human-Covenant War, built-in CNM suites have been integrated to the helmets of the [GEN2] variants of the Commando-class, the MP-class Mjolnir, and the INTRUDER-class Mjolnir. However, certain Command Network Modules are still external attachments, like the fifth-generation AN/PCK-440 FASCINATOR module on the MJOLNIR Powered Assault Armor [GEN3] armor.

Known modules
The CNM has multiple observed modules, each with its own distinct physical appearance.

AN/PCK-221 FARNDALE
The AN/PCK-221 FARNDALE is an uplink co-processor manufactured by the Watershed Division, allowing real-time access to Office of Naval Intelligence Military Intelligence (ONI MILINT) data vaults. The FARNDALE module resembles a cube, and can be worn on either side of the helmet. Its adoption is reserved for personnel employing the Recon helmet during sensitive operations.

The FARNDALE module has been observed to be compatible with the following helmets:
 * Mjolnir Mark V [B]
 * CQB
 * CQC
 * EOD
 * EVA
 * EVA [C]
 * Grenadier
 * HAZOP
 * ODST
 * Operator
 * Recon
 * Scout
 * Security
 * Wrath



AN/PCK-440 FASCINATOR
The AN/PCK-440 FASCINATOR is a fifth-generation Command Network Module typically employed by members of the UNSC special forces. Manufactured by the Watershed Division, the AN/PCK-440 resembles its predecessor, the AN/PCK-221. The FASCINATOR module has been observed to be compatible with the following helmets:
 * Anubis
 * Aviator
 * Cavallino
 * Enigma
 * Firefall
 * ISR
 * Mark VII
 * Soldier
 * Trailblazer
 * Zvezda



AN/PZY-6011Y TYPHON
Manufactured by Beweglichkeitsrüstungsysteme, the AN/PZY-6011Y TYPHON model augments the situational images for upper-echelon command intelligence analysis. The TYPHON module is standard issue to UNSC Special Forces unit commanders. It features two circular sensors, and can be worn on either side of the helmet. A Command Network Module-Improved (CNM-I) utilizing the TYPHON variant has been observed on the HAZOP-class Mjolnir helmet.

The TYPHON module has been observed to be compatible with the following helmets:
 * Air Assault
 * CH252 helmet
 * Commando
 * EOD
 * EVA
 * EVA [C]
 * Grenadier
 * HAZOP
 * Mark V
 * Mjolnir Mark V [B]
 * Mark VI
 * Military Police
 * Nightfall
 * ODST
 * Recon
 * Scout
 * Security



ODST-CNM
The ODST-CNM is a specialized module of the CNM employed by the ODSTs. One was employed by Edward Buck during the Battle of Mombasa.

In-game information
The CNM serves as a cosmetic option and has no impact on gameplay.

Halo: Reach
The TAC/RS/STARLIGHT attachment, identified as a CNM in Halo: Reach, and the FARNDALE module are available as attachments on several helmets in the armor permutations of Halo: Reach. The device is priced at different levels of Credits, depending on the base helmets. In Halo: The Master Chief Collection, the same CNM-attached helmets are unlockable in Season 1: Noble.

Halo Infinite
CNM attachments are available as customization options in Halo Infinite. The release of Halo Infinite was accompanied by a series of retcons, with a CNM being re-designated into the TAC/RS/STARLIGHT attachment, while the standard HUL module being re-designated into the CNM/BNR/FARNDALE.

Production notes

 * During the Halo: Reach Multiplayer Beta, the Mark V[B] helmet had a CNM upgrade available, though the CNM resembled a sun visor which extended above the visor. The device cost 2,000 cR, but was cut from the final game.
 * During the Halo: Reach Multiplayer Beta, the CNM on the CQC helmet, along with UA attachment on the Mark V[B] helmet, was mislabeled as a HUL. The FARNDALE variant on the Military Police helmet, however, was correctly labelled "CNM".
 * In the final release of Halo: Reach, two mislabeled helmet attachments involved the CNM:
 * The FARNDALE CNM variant, originally identified as a HUL in Halo: Reach, mislabeled as a CNM on the EVA[C] helmet.
 * The TAC/RS/STARLIGHT attachment, originally identified as CNM variant in Halo: Reach, was mislabeled as the UA/HUL-I on the Mark VI helmet.
 * Although the ODST armor/HVY armor in the Halo 3 portion of Halo: The Master Chief Collection was based on the armor worn by Victor Ramos in Halo: Fireteam Raven, Ramos's helmet did not employ the UA and CNM attachments in Halo: Fireteam Raven.

List of appearances

 * Halo 3
 * Halo 3: ODST
 * Remember Reach
 * Birth of a Spartan
 * Deliver Hope
 * Halo: Reach
 * Halo: Fireteam Raven
 * Halo 5: Guardians
 * Halo Infinite