The Command Structure of Infantry
In a field battle, infantry will commonly be deployed rank and file, that is to say square formations. A file is ten men in a row, while a rank is ten men side by side. To be marching single file is to be stretched out along a path.
A fully manned squad numbers about 25 men.
The basic unit of command is a company, which numbers from 5 to 10 squads, and an average of 150 fighting men.Each company is led by a captain, who is assisted by one or two lieutenants.
The Standard: The standard of a company is composed of a banner and a crest. The crest is usually crafted from wood or metal, and is an animal, human or monstrous figure, often the charge or preferred animal of its founding captain. The crest is held to be the shelter of the company’s protecting spirit. It is given worship by the company’s troops, and is hailed by them before battle. The banner of the company is usually the coat-of-arms of its commander, though some well-established companies have their own distinct banner.
Standard bearer: The standard bearer is typically an ensign or an ancient of the company, he carries the banner of the company (see "Flags"). A company stakes a lot of its honour on its banner, and the position of standard bearer is both honourable and dangerous.
Musician: Each infantry company has at least one musician. Military musicians are usually drummers, though Bőthers and Carrancochers are infamous for their bagpipers. In addition to playing on the march and in battle, musicians are used to draw attention to the recruiting efforts of a company.
Regarding Flags
The banner is a rectangular flag, about twice as high as wide. They are used for companies’ standards, but may also be carried into battle (or socially) by a nobleman of banneret rank or greater (i.e: not by knights, but by baronets) to show his coat-of-arms.