Late Ming Dynasty: from Feeding the Refugees to Wearing Yellow Robes

[Doomsday warehouse + struggle for hegemony in the late Ming Dynasty + technology crushing + decisive killing + farming and exploding troops] In the winter of the fifteenth year of Chongzhen, people died of hunger everywhere outside Datong Town. Modern survival maniac Chen Yuan traveled through time and became a starving and disfigured frontier soldier. As soon as he opened his eyes, he saw his child bride being dragged by a flag officer to a refugee camp in exchange for brown rice! At a critical moment, Chen Yuan awakens the "Doomsday War Preparation Warehouse"! With a thought, a pump-action shotgun appeared in his hand, and a single bullet blasted the flag officer to pieces, shocking the entire audience! The Jiannu Rangers are attacking? Caliber 12 teaches you how to be a good person! Jiannu's heavy armored cavalry charges? The 14.5Mm twin anti-aircraft machine guns leveled the mountain! Is the gate of Daming City closed? The 104-ton heavy-duty bulldozer uprooted the gate! There is a severe drought and no harvest? The yield of 5,000 kilograms of potatoes and chemical fertilizers per acre directly made the refugees recognize their father on the spot! When Dorgon was left with a psychological shadow and Li Zicheng did not dare to cross the Yellow River, Chongzhen took the initiative to drive the refugees from all over the country to Datong in order to get a few weapons to eliminate them... Chen Yuan's Datong City has turned on LED street lights, pulled out mortars and torrents of steel, and established his own empire in this troubled world!