OCEANIC-class Mjolnir

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H4 MJOLNIR Oceanic.png
Production overview


Hannibal Weapon Systems[1]

Testing site(s):

WG/Facility 93-00/Kotka[1]




Deep water discovery


  • Pressure-resistant cross-brace visor
  • Anterior and posterior lock chest
  • Peel-casing pauldrons
Used extensively during the recovery of Terceira from the United Rebel Front.

OCEANIC-class Mjolnir is a variant of the MJOLNIR Powered Assault Armor [GEN2].[1]


The helmet has a pressure-resistant cross-brace on the visor to protect the user from heavy pressure in different situations that require it. The chest has a Anterior lock and posterior lock for modular pressure shrouds. The armor also uses Peel-casing pauldrons to streamline movement in particle-dense environments.[1]

Development History[edit]

The Oceanic variant was manufactured by Hannibal Weapon Systems and tested at WG/Facility 93-00/Kotka. The suit was designed for missions in deep-water areas with little or no light.[2]

It saw prominent use during the reclamation of Terceira from the United Rebel Front at some point after the Human-Covenant War, when a number of "wake siege specialists" in this armor were deployed to take back the hydroelectric platforms distributed across its planet.[3][1]

This armor has also been deployed near artificial gravity wells and conduction-intensive fields due to it being one of the most resilient armor systems in GEN2.[1]

Due to its cost, the operation of this armor requires a level-four Ordnance Commission approval.[1]

In-game information[edit]

Halo 4[edit]

Unlock: Achieve Spartan Rank 47

  • Description: Used extensively during the recovery of Terceira from the United Rebel Front.

Available skins: CRCT(Circuit) and SLID(Solid)

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List of appearances[edit]


  1. ^ a b c d e f g h Halo 4: The Essential Visual Guide - Page 158
  2. ^ Halo 4 Interactive Guide - Armor Types: Oceanic
  3. ^ Halo 4 - Armory description