Operation Honshu Wolf (Extinction Biome Book 1)

Alex Miller trained for years in the Army, waiting for a war that never came. Now a corporate bodyguard and driver, he’s about to bear witness to the end of the human race.
An ancient ecology has reawakened, and like a Biblical plague it threatens to consume all life on Earth. Hordes of parasite-infected humans riot in the streets, as vast fungal blooms destroy our crops and fast-evolving horrors stalk our cities.
The last time this happened, T-Rex found itself on the menu. But mankind’s got more than teeth – it’s got guns. Schaeffer-Yeager CEO L. Gray Matheson has plans, and the turn-around starts now. Miller’s been assigned to OPERATION HONSHU WOLF, finding essential S-Y staff in the nightmare and getting them to a safe haven...
Extinction Biome is a new military-SF series about a world overrun by an ancient ecology, awakened from a millennia-long dormancy to destroy the human race; and about the decisions we must make to try and survive.