The Strongest Warlord: Arms Tycoon, Heavy Artillery to Clear the Ground

Let's take a look at how Gu Yunfei went from an inconspicuous "puppet army" to a violent upgrade all the way, using the most violent metal storms and heavy artillery to cleanse the land, sweep across the Central Plains, and step by step create an invincible iron-blooded army that terrifies the Japanese invaders and scares the great powers!