`Jackson was a sniper. The US did have an official role for snipers in WW2, though it was a different one than the current, more fieldcraft based version that you are thinking of. Note the scene where Caparzo gets shot. Jackson points out the church and says ``That's where I would be``, and sets up for a sniper kill on the target. Because he DOES have a knowledge of sniper tactics, Jackson is clearly a sniper rather than a ``dedicated marksman``, a role that did not exist in WW2.  Son of the Defender   `