100 shots in 100 minutes.
In Ancient Rome, the Centurions were the rough equivalent of junior officers. Most commonly they commanded a 'cohort' of legionairres, which was 80-100 individuals. In battle, centurions could be easily distinguished by the transverse crest of horsehair or feathers, dyed red, upon their helmet.
Centurions are some of the best examples of leaders in history. They, like many great men, lead from the front; whatever the men under the centurion's command were doing, the centurion was doing it right there with them, whether that be chopping down logs for fortifications or fighting and dying. As such, centurions had a much higher mortality rate than officers in other armies - but only a few empires have come close to matching the size of Rome.
Although Rome in the west dissolved, the centurions continued through the Byzantine Empire in the east, in this case renamed 'kentarch'. Same thing pretty much.
Vegetius: The centurion in the infantry is chosen for his size, strength and dexterity in throwing his missile weapons and for his skill in the use of his sword and shield; in short for his expertness in all the exercises. He is to be vigilant, temperate, active and readier to execute the orders he receives than to talk; Strict in exercising and keeping up proper discipline among his soldiers, in obliging them to appear clean and well-dressed and to have their arms constantly rubbed and bright.