Three Kingdoms: Armed with a Gatling Gun from the Start

He woke up to find that he had transmigrated to the Three Kingdoms period and become the unluckiest man of all, Hua Xiong. The battle at Sishui Pass was about to begin, and Guan Yu was going to kill him. What was he supposed to do? “Ding! Congratulations, Host, you've obtained a Gatling gun!”