You are in a period of war, a war going on and you need to defend their country from invaders. Occupation military pilot allows you to sit at the helm of combat fighter and wage war in the airspace of your country. Rather, take off in height and use their energy to destroy the enemy air technology. Point your gun so well to maneuvering between the clouds, machine-gun fire to ram the side of the enemy. In this battle, only the strongest will survive, so do not try to underestimate the enemy.