A sniper is a trained sharpshooter who operates alone, in a pair, or with a sniper team to maintain close visual contact with a target and engage the targets from concealed positions or distances exceeding the detection capabilities of enemy personnel.
Some notable military snipers include:
Not all snipers are highly trained professional soldiers. The term is sometimes ambiguously used to describe criminals firing from cover at long range with a rifle. Some civilian snipers include: