Politically incorrect?

After seeing the film I wanted to know more about the "Sniper". The book is then to better understand motivations and world of thought of Chris Kyle. In English. Original sounds some point quite dramatically, such as when he speaks of a "target rich environment" writes - that ultimately many (human) targets before the sighting.
The man is from Texas and his worldview is now even less tousled-hesitant-undecided as we are accustomed to in this country. But he has clear Wertvortsellungen and is not a "killer".
Politically correct or not, the man did his job perfectly mastered, used his skills and his comrades as well protected as he could without regard to their own lives. Should I ever be in a situation to have to rely on those professionals, I would be happy if they are then there!