Ming Dynasty: Summon a Divine General at the Beginning

Travel through the late Ming Dynasty and become Emperor Chongzhen, gaining a god-level power system. I heard that Hou Jin's red cannon is very powerful? I have a divine general who can't even be killed by an atomic bomb! I heard that the Mongolian cavalry are very skilled with bows and horses? I have a Gatling gun battery, and I can destroy your army of 100,000 in five seconds! I heard that the fleet of the British Empire is invincible? Haha, I won't dispatch the aircraft carrier yet. Let's take a look at the nuclear submarines, battleships, and supersonic bombers! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.