Transmigrating to the Three Kingdoms with a Pistol from the Start

He transmigrates to the Three Kingdoms. Watch as he climbs step by step to the very top. When I bring out my Gatling gun, Boss Cao, how do you plan to deal with it? The realm falls into chaos, with warlords claiming their own territories and ordinary people caught in the fighting, struggling to survive. As a modern man, I have never seen anything like this. I swear I will free the people from the suffering of war. Once I unify the realm, those little guys to the east dare to provoke us? I will wipe them out.