Woah, I've never seen any real footage of D-Day before. Is the images of entire squads being gunned down as soon as the lander opens a dramatization?
In VAST majority of cases yes, war looks nothing like you see it in the movies or in games
Besides, I'm not sure you could accurately ever depict a real war in a game otherwise your chances of ever surviving the game would be incredibly slim and insta death doesn't often make for good games. The only game I've ever seen and played that's made me truely think of how horrible war must've been is the Red Orchestra series. You just feel utterly helpless.
Red Orchestra series is also a dramatization. Humans don't die so easily as you might think, just look at casualties the nations endured during the WWII, the number of wounded and taken prisoner are many times higher than the number of people killed, also, a lot of those deaths are from illnesses, friendly fire (much more common than you would think), accidents (stepping on your own mine, wrong use of ordnance, malfunctions especially in planes + landing/take-off accidents and dozens of others).
Take the battle of Peleliu for example, a pretty hardcore battle in the pacific, the US casualties: 1,508 killed and 6,635 wounded. Or Iwo Jima 6,821 killed and 19,217 wounded.
War is super slow, tedious, boring and "un-interesting". You just march across a field and fire a pot shot here and there, then lie on the ground for half an hour and then get hit in the leg or stomach so they take you back to base. Yes, of course there were some very high pitched battles during WW2, but those were rare and far between, mostly it was as dull as it could get. I am not saying that war is boring, millions of people died which is a horrible tragedy but I am saying that war doesn't look as "cool" as the media try to make it look.
Sorry for derail