Platoon

Introduction
A Platoon is a military unit used by the UNSC Marine Corps to organise its combat forces. Normally, a Platoon is composed of several squads, at least two, and can contain between 30 and 50 members.

Composition
Depending on their purpose, a Platoon can have a varying number and speciality of its personnel. Using a US Marine Corps platoon as an example, a Rifle Platoon usually encompasses three squads of riflemen, as well as a Navy medical Corpsman, a Platoon Commander (usually a Second Lieutenant) and a Platoon Sergeant (usually a Sergeant First Class). If the UNSC uses a Weapons Platoon, then the squads are replaced by mortar section, assault section, and medium machinegun section.

ODST platoons seem to have fewer members than the regular Marine units, possibly because they aren't as easily defeated on battle, making it better to deploy them in smaller forces.

Known UNSC platoons

 * First Platoon
 * 105th Drop Jet Platoon
 * Fifth Platoon
 * Fourteenth Platoon