What is the eight-character idiom of Ban Chao who led the troops to attack the Xiongnu camp at night?

Ban Chao led 36 warriors to attack the enemy camp at night, beheaded the Xiongnu messenger and surrendered to King Shanshan. This threatening attitude caused psychological fear to King Shanshan, forcing him to accept his own conditions, thus timely reversing the unfavorable situation and saving the friendly relationship between Han and Shanshan on the verge of crisis. If we adopt a good plan of "taking detours and going straight", we can often turn disadvantages into advantages, thus defeating our opponents.

Ban Chao is the youngest son of historian Ban Biao. Although he is ambitious, informal, filial and respectful, and works hard at home, he is not ashamed of it. Ban Chao is eloquent and well-read, and often reads "Ram Spring and Autumn Annals".