A sniper is a marksman or qualified specialist who operates alone, in a pair, or with a sniper team to maintain close visual contact with the enemy and engage targets from concealed positions or distances exceeding the detection capabilities of enemy personnel. Snipers typically have highly selective or specialized training and use crew-served high-precision/special application rifles and optics, and often have sophisticated communication assets to feed valuable combat information back to their units or military bases.

A sniper is a military or police member who has received specialized training in engaging targets at long ranges using rifles equipped with telescopic sights.