Musket-armed troops who use massed volleys to break an enemy, relying on discipline to withstand any counter-fire. “Marching regiments” or “line battalions” make up the majority of units in European-style armies. They are so called because they form the line of battle, not because they always deploy in lines. Indeed, over time the capabilities of line infantry should improve as new tactics, drill and weaponry are developed. These soldiers carry muzzle-loading, smooth-bore muskets firing lead balls as wide as a man’s thumb. These are inaccurate weapons, effective only over 200 paces or so and when fired in massed volleys. The ability to fire and reload with machine-like regularity with shot and bullet flying and comrades falling all around is what wins battles.