Are those "certain German history"-rules applicable for every photo depicting a German soldier from that period? I ask because not every German was a Nazi back then.
Also, there is IMHO a huge difference between pics from:
A) f.e. a certain "Adolf H.", or a certain "Heinrich H.", or a "Waffen-SS Soldat" (a soldier who is obviously a Nazi, because belonging to the SS).
I can perfectly understand/agree that such guys cannot be shown.
B) f.e. a "U-Boot Mannschaft" (German submarine crew), or a "Wehrmacht Soldat" (regular German army soldier) or a "Luftwaffe Pilot" (German Airforce pilot), who are not necessarily Nazis (which was a political ideology) but who could just be fellows having to join the armed forces because of war.
If guys from B) may not be shown either, can you in that case show British troops or US GI's shooting at German soldiers or not? And if you could, could you then depict German troops shooting at Americans or British?
If you want to make a Playmobil-custom of a WW II military airplane and show a picture of it, should it then be an Amercan or a British aircraft, or can it also be a German or a Japanese aircraft? If it can, is it allowed to show a German or Japanese pilot?