"Getting shot at sucks. At no point is that a good thing."
True words spoken by Tim Kennedy, a former member of the Army's elite 19th Special Forces Group.
With snipers being one of the most feared warriors on the battlefield - think Carlos Hathcock and Eric R. England - their patience and stealth make them a fearsome force to be reckoned with.
"Things change very dramatically when you know you are being hunted the same way you're hunting them," says Terry Schappert, a former Green Beret and sniper instructor, when talking about his experiences.
You can see the ultimate sniper duel in "The Wall" starring Aaron Taylor-Johnson and WWE superstar John Cena.
Check out the video below for the "Man in the Shadows" - Part 2