After confirming the Plague King's ability effects, Fang Jie didn't even think twice before preparing to mass-produce them.
As for the infected on the battlefield, Fang Jie left them all to the management of the Plague King.
Because no matter how one looked at it, the Plague King was clearly easier to control, almost like a superior troop type. Perhaps their direct combat power was not as good as the others, but in all other respects, they were extremely powerful.
The Plague King was born to be the leader of the plague-type troops, which was only natural.
Moreover, the infected really looked a bit rough, not to mention their bodies were covered in rotting flesh, and they smelled quite pungent.
The key issue was that these infected, due to their high level of decay, although being highly intelligent, were simply unable to speak. It was easier to just let the Plague King do the work for them, making commands much simpler.