HAZOP-class Mjolnir

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

— Description of the HAZOP helmet.

The helmet of the HAZOP armor as seen through a glitch during the Halo: Reach Multiplayer Beta.

The MJOLNIR Powered Assault Armor/HAZOP (Hazard Operability), is a variant of the Mark V MJOLNIR Powered Assault Armor.

Two uprades are availible for the helmet, the first adds a Chemical, Biological, Radiological, and Nuclear Module with a Hardened Uplink Module on the right side (CBRN/HUL), and the second adds the unnamed attachment similar to night vision goggles found on the Operator variant with a Command Network Module on the left side (incorrectly called a CNM-I, and instead should be called ?/CNM).

The HAZOP armor also includes a shoulder piece, which costs 500 cR.

All current HAZOP helmet permutations in Halo: Reach.