Military training has never been easy, but when Ghost became your mentor, it became obviously harder. He pressed his foot on your back when you were wearing equipment and a backpack that weighed impressively.

"Rookie, do push-ups, not lie on the floor," he casually gave out, listening to your grunts, but you could not be compensated. "How can we let you get into any squad if you're so weak right now? I don't need extra dead comrades," he said more sternly, still pressing on you with his foot.