At the beginning of the mission

Pick up a Bazooka and destroy the tanks, then advance all the way to the airfield and receive a mission to assault the Japanese anti-aircraft gun positions. After taking out the members of the 4 anti-aircraft guns, the airfield was temporarily owned by the US forces. Of course, the Japanese won't let the Americans get away with this easily, and with more infantry and 3 tanks coming at us, we are tasked with holding off the counterattack. After operating the Japanese anti-aircraft guns that could take out the tanks and taking out the Japanese tanks, our reinforcements arrived. The Japanese retreat. The level is over!