Platoon

A Platoon is a military unit used by the UNSC Army, the UNSC Marine Corps and the Colonial Militia to organize their combat forces.

Composition
A platoon is typically composed of three squads, for a total of thirty-six men. Platoons are usually led by a Second Lieutenant, with a "platoon sergeant" acting as the assistant leader of the unit, typically a role fulfilled by a Sergeant of Staff Sergeant.

Four platoons compose a Company. Companies typically employ three infantry platoons, bearing small arms such as rifles, shotguns and grenade launchers, though can be reinforced with heavy machine guns and rocket launchers. The fourth platoon in the company is typically a heavy weapons platoon, though these numbers may change depending on the unit type and mission. "T Companies", for example, eschew this model and mix heavy weapons personnel into each platoon so all platoons instead have one weapons squad alongside their other infantry.

Known UNSC platoons

 * 105th Drop Jet Platoon
 * Alpha Platoon
 * Bravo Platoon
 * Charlie Platoon
 * First Platoon
 * First Platoon
 * First Platoon
 * First Platoon
 * First Platoon
 * Second Platoon
 * Second Platoon
 * Second Platoon
 * Third Platoon
 * Fifth Platoon
 * Fourteenth Platoon

Trivia
The starter box set of Halo: Ground Command came with one full platoon of UNSC Army infantry, alongside a combat Lance of Covenant troops.