The Continental Army waged war using linear tactics. It fought in closely formed lines or ranks of soldiers, usually two but sometimes three deep. The soldier in the front rank and the soldier in the rank behind him formed a file. Soldiers typically stood between 18 inches and 4 or 5 feet apart, depending on the type of combat.
If facing enemy infantry or mounted troops in an open field, they might form at closer order to better concentrate their fire. If fighting in woods or if facing artillery, they might open their files—increasing the distance between soldiers—in order to get around trees and bushes or to make themselves less of a target. Commanders sometimes ordered independent fire by files, with each pair of soldiers shooting in turn. Light infantry troops often practiced this tactic.
When firing as part of a platoon or battalion, officers gave the command to march, load, and fire. To communicate information over the noise of the battle, drummers used different drumbeats that conveyed commands and enabled soldiers to fire in near-perfect unison.
Any missed step or unheard command could put soldiers in the wrong place and open them up to severe injury or death. Commanders therefore demanded strict discipline to execute linear tactics. Corporals ensured that privates knew and understood their drill and kept order within the ranks. Sergeants kept the ranks and files together on the battlefield, protected the officers, and helped them to evacuate the wounded and resupply ammunition.
Both corporals and sergeants wore an epaulette or strip of cloth on their right shoulder to show rank. Those of the corporals were green, those of the sergeants were red. After 1779, the epaulettes were white cloth, one for corporals, and two for sergeants. Sergeants usually carried swords in addition to muskets, and early in the war sometimes carried a polearm known as a halberd.
Drummers, who also played fifes, often wore uniforms of opposite colors so that their officers could find them in the heat of battle. Officers wore uniforms in the color of their regiments, with a sword, sash, and epaulettes to denote rank, or a long polearm called a spontoon. Immediate recognition was critical in the heat of battle, and armies of the day often wore brightly colored uniforms, if they were available, to distinguish friend from foe.
At other times, soldiers wore simple linen hunting shirts. Few thought about the need for camouflage, as the capabilities of the weapons that soldiers carried meant that most battles were fought in the open at relatively close range.