Canon

COPPERHEAD-class Mjolnir

From Halopedia, the Halo wiki

A Copperhead-clad Spartan IV with a Sentinel M395 DMR on Halo 5: Guardians multiplayer map Escape from ARC.
Copperhead
GEN3
Icon of the "Copperhead" bundle.
GEN2
A render of Olympia Vale.
Production overview

Manufacturer(s):

Watershed Division[1]

Type:

Role(s):

Covert operations[1]

 

COPPERHEAD-class Mjolnir is a MJOLNIR armor variant designed by the Watershed Division.[1]

Overview[edit]

Design details[edit]

The suit is equipped with interior systems to exploit the complex "terrain" of human and alien societies.[1] Olympia Vale's Copperhead armor weighed approximately 400 kilograms.[2]

Development history[edit]

Designed by the Office of Naval Intelligence's Watershed Division. Copperhead armor was built and designed from the very beginning to be used in covert operations and other "special activities".[1]

Equipped with interior systems to exploit the complex "terrain" of human and alien society, the origin of the Copperhead armor's "militarized anthropology" decision support system originates from innovative tools created by Colonial Administration Authority field teams that operated in the Insurrection.[1]

Usage[edit]

The armor variant is rarely seen as it is closely guarded by ONI's direct action teams and personnel require high levels of clearance to even review maintenance logs.[1]

Spartan Olympia Vale used this armor in 2558.[1]

In-game information[edit]

Halo 5: Guardians[edit]

Copperhead was introduced in Halo 5: Guardians as an armor permutation unlockable via the Requisition system. Like Helljumper, Hunter, and Technician, the armor acts as a pseudo-recreation of Olympia Vale's armor within Halo 5's campaign; only lacking the uniquely designed techsuit Vale's variant possesses. It features one solitary skin: Fangs.

Armor Description Rarity Introduced in Unlock requirements
REQ icon for the Copperhead armor.
Copperhead (helmet) 		Packed with systems to exploit the complex "terrain" of human and alien society. The origin of COPPERHEAD's "militarized anthropology" decision support system can be traced to innovative tools crafted for use by Colonial Administration Authority field teams working during the darkest days of the Insurrection. Mythic Introduced on launch. Purchase a Gold REQ pack for REQ Points 10,000 REQ points.
REQ icon for the Copperhead armor.
Copperhead Fangs (helmet skin)
REQ icon for the Copperhead armor.
Copperhead (body) 		A multipurpose armor system built from the ground-up for covert "special activities," COPPERHEAD armor is rarely seen since it is jealously guarded by ONI's direct action teams. Requires Eyes Only Top Secret clearance to review maintenance logs.
REQ icon for the Copperhead armor.
Copperhead Fangs (body skin)

Halo Infinite[edit]

Copperhead would later make a return in an updated form in Halo Infinite, added during the Fall Update's Haloween II Operation on October 28, 2025 in celebration of Halo 5: Guardians' 10th anniversary. It is available both through the Shop and The Exchange. The Copperhead helmet and its associated armor parts are primarily available for the Mark VII armor core.[3]

Armor Manufacturer Lore Rarity Introduced In Unlock Requirements
Winning over new allies has never been more important for the UNSC, and COPPERHEAD is a vital tool for covert and kinetic diplomacy. (Watershed Division/Legendary)
Copperhead 		Watershed Division Winning over new allies has never been more important for the UNSC, and COPPERHEAD is a vital tool for covert and kinetic diplomacy. Legendary Haloween II

Purchase either:

  • "Copperhead" for Credit 1,800 (Shop) or Spartan Point 125,000 (The Exchange)
  • "Vault of Osiris" for Credit 3,900
Custom-tailored comm uplink to augment the Copperhead's suite of "militarized anthropology" decision support systems. (Watershed Division/Legendary)
HUL-I/Viperflare 		Custom-tailored comm uplink to augment the Copperhead's suite of "militarized anthropology" decision support systems.