Iron-Blooded Lu Bu: Special Forces King Conquers the Three Kingdoms

Protagonist: Lin Chen (China's top special forces king, sacrificed in cross-border counter-terrorism, soul-transmigrates into Lu Bu in the third year of Jian'an, occupies Lu Bu's body, inherits the world's top martial power, and brings a full set of modern military skills including special operations command, training, logistics, espionage, and terrain analysis) gradually conquers the Three Kingdoms and unifies the world. — Description from novelcodex.org