The System Says I'm Destined to Die, So I'll Raise an Army and Topple the Dynasty

He worked himself to death, then woke up lying in a pile of corpses. Enemy cavalry charged, blades already at his throat. Just as all hope seemed lost, the [War King System] suddenly bound itself to him. Trajectory calculations, tactical simulations, advanced blueprints... A good-for-nothing foot soldier defies fate, fighting his way from a pile of corpses to become a great general! Undefeated in a hundred battles, he sweeps across the land and commands seventy percent of the empire’s troops. But suddenly, the System displays a blood-red warning: Fated end: His achievements overshadow the emperor, and he dies in misery! The emperor wants him dead, his comrades are purged, and this iron-blooded loyalist has nowhere left to turn. When loyalty is repaid with the hunter’s betrayal, should he kneel and await death, or turn the whole world upside down?