>>18144333
In the grand scheme of things, snipers (as in long-range fighters who operate alone or with a spotter) are practically useless in warfare. Even regarding assassinations they don't have a good track record, the most famous example where an American Sniper took out a Vietnamnese General for example might just be a myth.
Their application is more psychological, to cause a paranoia amongst the enemy and provide a false hero to the own troops. But there also plays the Tiger-paranoia into it (where Solfiers mistake a random infantery man with a rifle as a sniper because it sounds better than pinned down by a random conscript because he was better positioned). As previously said, the Germans didn't even have snipers until 1942/1943 and they did just fine.
Marksman on the other hand (who operate with their unit at medium distances) seem to offer at least some benefit on a tactical level, enough for officers and Medics (in theaters where they were shot regularly like the Eastern and Pacific front) to hide their insignias.