The mission for this level is one, namely to eliminate the members of the three Japanese mortars.

At the beginning, advancing with his own armoured unit, he suddenly encountered two hidden Japanese anti-tank artillery positions, wounding and destroying our Sherman tanks.
Followed by Sgt Roebuck to eliminate the Japanese anti-tank positions. The enemy defences are quite tight, so move along. The enemy's anti-tank guns can be dealt with by operating the enemy's 25mm anti-aircraft guns. After eliminating all the defenders of the Japanese position, regroup the squad. After that, advance and follow the sergeant. You will find that the Japanese firepower is quite fierce, wait for your Spitfire tank to be in place, follow the very yellow and violent Spitfire until you reach a Japanese tunnel, eliminate the guards at the entrance and then kill the members of the tunnel that threaten our ships' guns, use grenades to open the way (grenades are very threatening in this generation, usually, if a grenade icon flashes near you, Miller or Peter will see Max), and take out the last Japanese. Once the last Japanese defender has been eliminated, Miller's mission on Peleliu Island is over for now.