this wave of arrows seems to be menacing, but because the Liao army does not know the specific target at all, it only shoots aimlessly, so it does not cause much casualties to the Qin army.,in the darkness, Su Pingbei's military orders are conveyed layer by layer in the form of gestures to ensure that everyone can understand what Su Pingbei means.,all Qin troops immediately began to act in accordance with the predetermined battle plan.。