How to get through the fortress in the sixth phase of Vietnam Hell Game?

Kill the soldiers next to you first, then press the Z key to get down (so that the machine gun fort can't hit you), and then find the grass without bamboo thorns. Be careful, there is a booby trap. Cut it with the F key. Then go around the back of the fort and load the bomb. Then run away.

Meet the second fortress, and so on. Be careful of the counterattack of the Vietnamese army when loading, and run away quickly. By the way, using the shift key to escape from the machine gun fort won't hit you.

Pure hand tour, please adopt.