Battlenaut Crucible by Robert Jeschonek
Approx. 101,920 words.
Published on October 4, 2012.
The Red Battlenauts show no mercy. Roaring out of deep space, these high tech war machines pound both sides in an interstellar war. No one can even SEE the Reds--no one but Marine Corporal Solomon Scott. Recruited by the SEAL-like Diamondbacks, Scott becomes a weapon in the ultimate struggle for survival. Strap yourself into the cockpit for over 100,000 words of blistering military SF action!