Commissars are integrated into every decent-sized squad or regiment and have authority over all men in their unit. To ensure that all commands are met and that military units are in tip-top shape, an organization known as the Commissariat has been put in place to ensure that morale is just high enough to keep troops from deserting the first chance they get. They are often the first to the fight, and they usually never leave until the job is done or they are completely destroyed.

The Imperial Guard are at the front lines of any conflict in the Imperium. The Imperial Guard is best known for their impressive tanks and artillery pieces that are second to none in sheer killing power. The varieties of units and hardware used by the Imperial Guard is as diverse as any one is likely to find, with regiments each forming their own battle tactics, equipment, and role on the battlefield. Their lives are but ammunition for their superiors and the most common tactic for the Imperial Guard to throw enough bodies at the enemy until they run out of ammo. They are recruited from countless worlds, forming billions upon billions of regiments and armed forces.

The basic foot soldier and most common troops deployed by the Imperium of Man.

Warhammer 40k imperial guard artillery