HALO

Plenty to explore in this complex universe where the good guys do very bad stuff too. The Kilo-Five Trilogy follows those saucy spooks of the Office of Naval Intelligence and splendid special forces marines called ODSTs. "The Navy's here!" And if you get that reference, then you'll love this series...
Book 2 -
THE THURSDAY WAR
October 2 2012.
New York Times bestseller.
Book 3 -
MORTAL DICTATA
January 2014
New York Times bestseller.
There's also a collection of shorter works available, called EVOLUTIONS. Check out my novella in it, HUMAN WEAKNESS. (Tor, November 2009.)
New York Times bestseller.
Book 1-
GLASSLANDS
Tor, October 25 2011
New York Times bestseller.