Which of the following snipers has the highest amount of confirmed kills?

Simo Häyhä holds the highest amount of confirmed kills among the listed snipers primarily due to his exceptional skills and the specific circumstances he faced during the Winter War between Finland and the Soviet Union. Häyhä, known as "The White Death," was a Finnish sniper who fought during the 1939-1940 conflict. With his exceptional marksmanship abilities, camouflage techniques, and strategic positioning in the freezing Finnish wilderness, Häyhä was able to eliminate a staggering 505 confirmed enemy soldiers, earning him the highest number of confirmed kills among the listed snipers. His remarkable achievement can be attributed to his stealth, patience, and effectiveness in close-quarters combat against the invading Soviet troops.