Crossing the Great Q

Yang Lin whispered, "There are a total of one hundred and twenty bandits inside. They all have weapons, including bows and arrows!","You twenty men, as pikemen, wait until after you charge in. When you hear my order, when I shout 'thrust', then thrust your pikes forward; when I shout 'retreat', then pull back your pikes!","I've made my decision. That's what we're going to do."。