If you are familiar with Bob the Nailer books by Stephen Hunter, you should like this book. There were a few paragraphes that I had to read a few times to make any sense of, but other than that this is a fun read.

If you are not familiar with Bob the Nailer, there is a movie about this character and one of the novels about his adventures called Shooter. Some of the background of Bob the Nailer has been updated in the movie from the book. http://www.imdb.com/title/tt0822854/