I, Qin Feng, Build a Special Forces Battalion in the Bright Sword World

Soldier king Qin Feng accidentally transmigrates to the world of Drawing Sword and saves Old Li from the start. Qin Feng: “Old Li, this is a Czech light machine gun. Do you know how to use the inverted-triangle ambush formation?” Old Li: “How did you come up with that? You're a genius!” Qin Feng: “Old Li, this is an Italian cannon. Shall we go take Ping'an County?” Old Li: “Are you crazy? How many soldiers do I even have?” Qin Feng: “Look at who's on top of that city wall.” Old Li: “Fire! Fire! Fire!”