FC attachments

Not to be confused with FCI-I attachments. FC is a series of supplemental helmet attachments, or configurations of supplemental helmet attachments, that are compatible with the MJOLNIR Powered Assault Armor.

Overview
The modularity of the MJOLNIR armor has made it possible to attach multiple modules on the helmet. In cases where a Command Network Module (CNM) and a Hardened Uplink (HUL) are both employed, the configurations are designated "FC", "FC-I", and "FC-I[2]" depending on the variants used.

FC
FC refers to the configuration in which the AN/PCK-221 FARNDALE and AN/PZY-6011Y TYPHON CNMs are both attached to the helmet. This configuration includes an external hardened uplink to the command network. This FC configuration has been observed to be compatible with the GRENADIER-class Mjolnir helmet.



FC-I
FC-I refers to the configuration in which an external HUL, along with the CNM-I, are integrated on the TAC/RS/STARLIGHT attachment, though this configuration has only been observed on the MJOLNIR/AA variant.



FC-I FASCIA
Manufactured by Misriah Armory, the FASCIA attachment adds an additional satcom receiver panel, FASCIA hardware-accelerator for decryption, and protects the faceplate from high-angle attacks. The FC-I FASCIA module has been observed to be compatible exclusively with the COMMANDO-class Mjolnir helmet.



FC-I[2]
FC-I[2] refers to the configuration in which both the AN/PCK-221 FARNDALE CNM and COURIER PEARL HUL[3] are attached to the helmet. This configuration has been observed to be compatible with the Commando and MJOLNIR Mark VI helmets.

Halo: Reach
The FC attachments in Halo: Reach are exclusive to Grenadier, Air Assault, Commando, and Mark VI helmets. The FC attachments appear to refer to cases where both the CNM and HUL are attached to the helmet. The FC-I configuration on the Air Assault helmet is the only exception, with a singular CNM attachment (later retconned as the TAC/RS/STARLIGHT attachment in Halo Infinite) on its side, though its description suggested that it is equipped with both the CNM and HUL.

Halo Infinite
The FC attachment in Halo Infinite are unlockable in armor customization.

List of appearances

 * Halo: Reach
 * Halo Infinite