Mechanical engineer Zhou Tiefeng accidentally traveled to the battlefield in northwestern Shanxi in 1937, awakened the [Iron-Blooded Tempering System], and became the battalion commander of a new regiment of Sharp Knife Battalion. Every time you kill an enemy, you will receive military points, which can be exchanged for weapon blueprints, medicines and supplies, and even unlock military technology.
From the use of an improved version of the "Border Zone" to blow up the Bantian headquarters during the breakout of Cangyunling, to the formation of a special commando team to surprise the Japanese airport in the Hundred Regiment Battle, Zhou Tiefeng's troops were tempered in blood and fire into sharp knives that penetrated the enemy's heart.
When the commander of the 386th Brigade discovered that his subordinate, who could always make rocket launchers with local methods, had secretly built the "Red Star Arsenal" in the Taihang Mountains, an order to fight independently pushed him to a broader battlefield. With Li Yunlong's cherished "cavalry company" modified armored vehicles, Zhou Tiefeng's torrent of steel went from the tank showdown in the Huaihai Battle to the ice fields of the 38th Parallel. The ultimate mission of the system is for him to build a miniature nuclear reactor before the Battle of Shangganling...