Best Sniper possibly in the history: http://en.wikipedia.org/wiki/Simo_H%C3%A4yh%C3%A4
Finnish sniper Simo Häyhä "During the Winter War (1939 – 1940) between Finland and the Soviet Union, he began his duty as a sniper against the Red Army. Working in temperatures between -20° to -40° Celsius, and dressed completely in a white camouflage suit, Häyhä killed at least 505 (unofficial figure is 542) Red Army soldiers by sniping them one by one." and besides the sniper kills he also did over two hundred kills with a submachine gun
"He preferred to use iron sights rather than telescopic sights to present a smaller target (the sniper must raise their head higher when using telescopic sights) and aid concealment (sun reflecting off telescopic sight lenses can reveal a sniper's position)."
Finnish sniper Simo Häyhä "During the Winter War (1939 – 1940) between Finland and the Soviet Union, he began his duty as a sniper against the Red Army. Working in temperatures between -20° to -40° Celsius, and dressed completely in a white camouflage suit, Häyhä killed at least 505 (unofficial figure is 542) Red Army soldiers by sniping them one by one." and besides the sniper kills he also did over two hundred kills with a submachine gun
"He preferred to use iron sights rather than telescopic sights to present a smaller target (the sniper must raise their head higher when using telescopic sights) and aid concealment (sun reflecting off telescopic sight lenses can reveal a sniper's position)."