Um....A few Comments:
Here are a few comments so you can Improve:
1. Landing Crafts are Gray not Green and the first batch of soldiers that came out were completly slaughtered.
2. D-Day was not only accomplished by the 'USA' and not by the US Marines. The British, USA, Canadians, and some Australians were on the beaches that day. And contrary to popular belief, the Canadians did the best job because they blew through the sea wall and advanced 15 km/ day away from the beach and into Normandy and France.
3. The Germans had MG42 and theirs werent greyish cylinders. They had to stop and reload every 2-3 mins or so while yours dont stop shooting until they are killed.
4. The way you killed the Germans was horrible. First of all , a grenade couldnt be thrown that acuratly and that high and the soldier poping his head or hand out to throw it would have been massacred by the 'Constant' MG42 Fire. Second of all they couldnt use bombers to destroy the Bunkers because of the Giant German Blimps in the Air that were blocking the skies to prevent the allies from using planes. Obviously you did not include them as well.
5. The Graphics were horrible, the Weapons used and Characters were very innacurate and there was no story.