Sniper

A sniper is an infantry soldier or serviceman who specializes in shooting from concealed positions at longer ranges than normal. Snipers often use purpose-built rifles. Snipers are typically skilled in marksmanship, camouflage, observing, and field craft. Military snipers are routinely called upon to carry out infiltration, reconnaissance, and observation. During the period considered by the text, snipers worked in conjunction with a spotter.

Spotter

A spotter is a sniper's partner, the second man in a two man team. The spotter is the half of the sniper team who discovers targets by using a powerful spotting scope or binoculars. The spotter can also, if required, direct the sniper's fire onto target, calling shots and suggesting sighting adjustments. The spotter also provides cover and security fire for the sniper. Often, a sniper team is composed of two snipers who take turns acting as spotter for their partner.

Vietnam War