They did have as an option the white 'bib' which was great to see.but of course it works both ways, all depends on the viewpoint of the man looking down his sights.
I read a book recently with actual accounts of WW2 combatants and in one statement a guy said that ,as a machine gunner, it was rare to see more than 1 man fall with a burst of fire unless it was a litter bearer party !?!?
The Geneva convention does allow a medic to carry a side arm but its solely to protect themselves/ their patient with.