Proof of Concept by J.N. Chaney, Jonathan P. Brazee

https://thebookvoice.com/podcasts/2/audible/193044 to listen full audiobooks. Title: Proof of Concept Series: Undead Marine, Book 2 Author: J.N. Chaney, Jonathan P. Brazee Narrator: Roger Wayne Format: mp3 Length: 11 hrs and 22 mins Release date: 08-04-24 Ratings: 5 out of 5 stars, 73 ratings Genres: Military Publisher's Summary: The Undead have been blooded in combat. Now it’s time to prove their value. The huge cost and effort to reanimate them must be worth it. With no rights of their own, their very existence depends upon their return on investment. But as the Undead are finding their footing and discovering how to best fight the war with the Tucanan invaders, the aliens are not standing still. They are experimenting with their evolutionary past to create new ways to fight humanity’s military forces.