A sniper is a military who engages targets from positions of concealment or at distances exceeding the target's detection capabilities. Snipers generally have specialized training and are equipped with high-precision rifles and high-magnification optics, and often also serve as observers feeding tactical information back to their units or command headquarters. This book is closely at wartime's lone wolf sniper, the sharpshooter sent on highly secret missions to take out a single important target; or in Nam who crawled underground to fight the enemy in the dark. Here's how they prepared themselves for the worst of it - in Carlos Hathcock's case a three-day crawl in slow-motion through heavily guarded enemy territory before he even reaches his protected target.