Infinite Heavens: the Bloody Battle at the Four Elements Warehouse at the Beginning

Kang Lei, who was repairing the router for his female colleague, suddenly traveled through time. The beginning was the defense battle of Sihang Warehouse during the Songhu Anti-Japanese War. The Japanese have planes and cannons, but I only have a roll of tape and a screwdriver. How can we fight this battle? ! Fortunately, there is a system of determination at critical moments. Reward "Advanced Combat Sports Rapid Fire", reward "mg42 machine gun", get the golden finger, kill little Japan! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.