My Class Calls Me a Good-for-Nothing, but I Use Earth's Tactics to Turn the Tables

Everyone in the cultivation class laughs at me for being a good-for-nothing who can't draw in spiritual energy, and even my instructor urges me to give up. No one knows that I transmigrated here as a tactical analyst, able to uncover schemes, predict monsters, root out spies, and defend cities. This good-for-nothing will rise up and carve a path through another world!