The marines all nodded in unison, then dispersed across the training ground. They carefully considered the key points Zefa had explained and began trying to practice the Six Powers of the Marines.,The mechanism of a gun is to gather all the force of the body into one point. The human body's power comes from its legs. With the contraction of muscles, Darren's military boots turned slightly, gripping the ground like nails.,Lime exploded, and a hole the thickness of a finger instantly appeared in the center of the stone target.。