I don't know why to single him our. There were many Germans killing many Allies that day and many of them were behind the barrel of an MG 42.

What about the guys that had to supply the ammo that the "Beast of Omaha" was actually firing are they any less guilty? We really could go all the way down the line to the justification of the Bomber War but I think you get my point.

Za is right, line of duty, enemy approaching, you can't have remorse. Plus he had probably never been "attacked" before, only advancing, there was no remorse nor a thought that what he was doing was wrong.

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Hence the saying: One may know how to conquer without being able to do it- Sun Tzu