Han Yi knelt on the cold railway track, his ear pressed against the rail. The whistle of a military train in the distance pierced the dark night, and the time bomb in his hand had 30 seconds left. In his pocket, the green light of the homemade radio had been flashing for 2 minutes and 50 seconds - in another 10 seconds, the Japanese army's mobile monitoring vehicle would lock his position with an error of no more than three hundred meters. Zhao Tiesheng rushed out of the drainage ditch with a bag of explosives on his shoulders and shouted in a low voice: "The Japanese got out of the car!" Xiao Shandong held the captured machine gun with a crooked handle, and the barrel of the gun was still hot to his hands. The system was racing in Han Yi's mind: "Tonnage of destroyed railway +0, killing of officer level +0, insufficient points to unlock new blueprints." "Explode!" Han Yi pressed the detonator. The moment the entire arsenal train rushed off the tracks, he pressed the radio switch to death - the monitoring car's flashlight just happened to sweep across the crossing three hundred meters away. But this time, Ichiro Sato didn't chase the train. He stared at the oscilloscope on the monitoring car and pulled out his command knife. Hidden in the retreat route map sent by Lin Ya was an X drawn by Chen San with blood.