trajectory of gunfir

He was puzzled, when suddenly pairs of army boots appeared, seeming like a squad of soldiers marching outside.,At this point, the sergeant with the submachine gun spoke up: "The gunfire is about one or two kilometers away. It must be the Duke Vladimir's troops still resisting. We should cross enemy lines and join forces with the Duke.",A rifleman is a soldier who uses an assault rifle, while all other soldiers are infantrymen.。