I, in Zombie Apocalypse with my Red Alert Command System

This book is also titled The Apocalypse Descends. The zombie virus has swept across Blue Star, leaving human civilization hanging by a thread. To make matters worse, the creatures of Blue Star have begun to mutate, causing humanity to fall from the top of the food chain to its lowest point. Wu Hao accidentally acquires a “Red Alert System,” begins an insane military buildup, and initiates a magnificent Red Alert era. As the sun sets, red flags snap in the wind, and a million troops stand in formation, their presence grand and imposing. System: “Respected Commander, the zombie army will arrive on the battlefield in thirty seconds!” Wu Hao: “All forces, advance! Crush them!”