Lin Ning, who came through time, ran into Li Yunlong with an old rifle in his hand and shouted "Bite the Sakata turtle shell". From the first battle in Cangyunling, he used modern ideas to teach Lao Li how to play "decapitation and sneak attack", and followed the independent regiment all the way: conducting guerrilla detours during counter-mopping operations, attacking Ping'an City with unique tactics, and giving Li Yunlong advanced tactics in every tough battle. Fighting from the northwest of Shanxi to the whole of China, helping Lao Li break through and get promoted all the way, and surprisingly he accumulated the military merits of the Anti-Japanese War to become the founding marshal. Watching the new recruits in time travel lead Lao Li flying, it is a pleasure to shine on the resistance front!