JFO-class Mjolnir

The MJOLNIR Powered Assault Armor/J variant, colloquially known as JFO, is a variant of the MJOLNIR Powered Assault Armor manufactured by Beweglichkeitsrüstungsysteme.

Specifications
JFO is a Mjolnir variant that improves artillery request communication/coordination by Spartans across the Army, Navy, and Marine Corps. Spartans also using JFO are also fielded with systems and programs to protect them.

Development history
JFO was developed by Beweglichkeitsrüstungsysteme at the Special Warfare Center Essen.

Usage
It was often fielded by single Spartans in reconnaissance, infiltration, and artillery targeting scenarios behind enemy lines. In 2553, the JFO helmet was worn by SPARTAN-III Owen-B096 as part of his mission with Outpost Discovery.

Helmet
The JFO helmet appears in the armory upon reaching the rank of Warrant Officer, but is not unlocked until Lieutenant Colonel.

The helmet features a large visor, shaped like a shield or a fattened "T", and has two small air intakes on the cheek areas. Overall, the helmet provides significant armor coverage, protecting the majority of the head while maintaining a large field of vision.

In-game, the HUL-I is available only for the JFO helmet.

Shoulders
The shoulder pieces are semi-circular arches that jut outwards from the shoulders. They also feature black, two-pronged protrusions that point parallel to the arm, and away from the hands.

Trivia

 * JFO stands for Joint Fires Observer, a United States military designation for troops who coordinate fire support from land-based artillery and naval gun formations, as well as close air support.
 * The visor of the JFO helmet somewhat resembles the faceplate of the Marvel Comics character Iron Man.
 * The shape of the helmet and the large visor also give it something of a resemblance to the helmets worn by NMPD officers.

List of appearances

 * Halo: Reach
 * Halo: Lone Wolf
 * Halo: Outpost Discovery