The name or term "Mobile Infantry" refers to more than one character or idea. For a list of other meanings, see Mobile Infantry (disambiguation).

Mobile Infantry

MI flag small


Light-armored infantry
Powered exoskeleton-infantry (later)


War, counter-terrorism[1]


FederationFlag United Citizen Federation

Part of

Federal Armed Services


Terran Command


Death From Above



General Johnny Rico

The Mobile Infantry is the ground military component of the Federal Armed Services of the United Citizen Federation. The primary military arm of the Federation Army, it is comprised of volunteers from all administrative regions of Earth and other Federal worlds joined into homogeneous units with no particular attachment to any specific region, eliminating the nationalistic tendencies caused by sovereign territories that provoked the Disorders and instilling personal sense of duty in the future Citizen franchise.


The Platoon is the basic tactical maneuver brick of the Mobile Infantry. A Platoon consists of 36 personnel, commanded by a Lieutenant. A Viking Dropship can transport an entire Mobile Infantry platoon.

Each Platoon is divided into four Squads of eight troopers each. A command element of four people is in addition to the squads. The command element consists of the Platoon Commander (LT), the Platoon Sergeant (SGT), a Sniper (PVT), and a Communications Operator (CPL).

The four Squads each consist of a Squad Leader (J/SGT), a Assistant Squad Leader (CPL), and six Private troopers.

A company consist of four platoons and a command element of eight men. The command element consists of, the Company Commander (CAPT), the Company Senior Sergeant (SSGT), three Communication Operators (1 x CPL and 2 x PVT) and a Protection Party of three (PVT).

There are four companies per battalion, commanded by a Lieutenant Colonel.

Four battalions makes a regiment, commanded by a Colonel.




Mobile Infantry Troopers on FedNet

The battle gear of the Mobile Infantry differs only slightly from modern day SWAT armor and Army BDUs (the uniforms greatly resemble Wehrmacht battle-gear from WWII). They are equipped with a helmet, thin body armor which is more for personal equipment carrying purposes, gloves and synthetic rubber combat boots. In hot environments, long sleeve field jacket are discarded in favor of the black T-shirt which is normally worn as an undergarment.

Communication operators carry a large backpack, possibly featuring radio and battlefield awareness system. The equipment not only allows surface to surface voice communications, but also surface to orbital, as well as real-time data updates, which keeps the operator well aware of the current battlefield events within 10 km radius. This is similar to the Blue Force Tracking systems developed in the early 21st century.


The standard arms used are the Morita Assault Rifle, Morita II Assault Rifle, E-pulse 44 Rifle, Morita III Assault Rifle. They are also trained with combat knifes, E-pulse 88 Rifle, and Rocket launchers and Tactical Oxygen Nukes. Mobile Infantry personnel are seldom seen using pistols and no combat ground vehicles are seen to be used.


During the Klendathu Invasion, the Mobile Infantry employs questionable tactics - if you would even call it that - when storming the Arachnid home-world. Pouring out of their dropships, the troopers formed loose mobs, barely establishing any defensive lines or even flanks. This leads to an easy breakdown of communication and contributed to the extreme losses the Federation suffered in combat. While confronting the Arachnids, several troopers simply "sprayed and prayed", firing their Morita rifles with reckless abandon without inflicting damage on the Arachnids. The Federation treats its soldiers as expendable storm-troopers, seeing that on FedNet they are shown dying. However, this could be propaganda to get people to think they are making a heroic sacrifice.

If an unfortunate situation arises where death to a Bug is inevitable, they are also instructed and/or encouraged to kill a fellow soldier to spare them the horrific death awaiting them.

By the Second Bug War Mobile Infantry tactics were greatly improved. On Roku San, they used "file and rank" tactics; one line of troopers would fire while the line behind them would reload. However, this was only supported because they were fighting in the narrow corridors of the Roku San garrison base, forcing the Arachnids into a single file row that they were able to pick off easily.

Recruiting and TrainingEdit

ST MI Join Now

Federal Service, including military, is purely voluntary; Recruits go through extensive drills designed to push them to the limit. These include capture-the-flag competitions using Training beam rifles and eventually training with live ammunition. In the event a trooper feels they can't handle it, they can sign Form 12-40-A and quit, with the only penalty being that they may not re-enlist.


Mobile Infantry Pin (films)

Mobile Infantry Badge

Main article: Rank Insignia

Known UnitsEdit



  1. Pathfinders Army Book

Community content is available under CC-BY-SA unless otherwise noted.