Fields of Fire: Frontlines, Book 5 (Unabridged)
2017
Chains of Command: Frontlines, Book 4 (Unabridged)
2016
Angles of Attack: Frontlines, Book 3 (Unabridged)
2015
Lines of Departure: Frontlines, Book 2 (Unabridged)
2014
Terms of Enlistment: Frontlines, Book 1 (Unabridged)
2014
Points of Impact: Frontlines, Book 6 (Unabridged)
2018