MAKO-class Mjolnir

MAKO-class Mjolnir is a variant of the MJOLNIR [GEN2] armor.

Development history
The suit meets UNSC requirements for multi-environment adaptation and has additional systems that allow it to excel in maritime environments. Though offered as a complete GEN2 Mjolnir system for the Spartan branch, adoption of the MAKO helmet by Army combat divers has proven to be more profitable.

Halo 5: Guardians
Argonaut was first introduced as an armor set in Halo 5: Guardians. The suit is not a fully-original design, and employs several Halo 4 armor pieces including the Ricochet forearms and Recruit legs. The Argonaut set has two alternate skin designs; Cthonic and Darkwater.

Trivia

 * Mako is the name of two kinds of sharks, Isurus oxyrinchus and Isurus paucus, which are commonly known as the Shortfin mako shark and the Longfin mako shark, respectively.
 * The Chthonic skin is named after the Greek term for "subterranean", which describes deities or spirits of the underworld in Greek religion. The skin's pattern is similar to the nose decals on the P-40 Warhawk fighters used by the United States of America during World War II.
 * The Darkwater skin is named after a collection of short stories written by the Japanese writer Koji Suzuki.

List of appearances

 * Halo 5: Guardians