Battle Earth: Extinction Book 3 - Nick S. Thomas

Earth's Greatest Warrior, Mitch Taylor, must make a stand in the face of a relentless invasion of Earth!
Taylor remains in intensive care, and Sommers is Missing in Action. But the fight must go on. Recon continues to launch hit and run attacks against enemy facilities disrupt their operations on the Eastern seaboard. Yet they are about to discover something far larger and dangerous than they could have imagined.
When Recon stumbles across a gargantuan Kaimeh birthing facility on American soil, they know it must be destroyed before Atua can begin outputting cyborg soldiers quicker than Earth's defence forces can put them them. It is a desperate race against time as Recon battles the odds in their darkest hour. For if they fail nothing will hold the enemy back. Now more than ever, Earth needs Taylor and the heroes of Recon.
Battle Earth: Extinction Book 3 is a futuristic sci-fi action adventure that chronicles vast bloody battles after humanity's reach into the stars. It follows on from the 'Battle Earth' and 'Battle Beyond Earth' series but can be read as a standalone series.