Interesting.
We are here playing a simulator which we enjoy because it is so realistic. We praise it for realism of weapons, missions and campaigns which immerses us in the game. We watch and are entertained by films depicting war, even comedies, Black Adder Goes Forth in the UK and MASH in America for example.
I watched a series about the second world war recently which brought me to tears several times with its real-life footage. However, Prolixite, I read your post and it made me smile. Fortunately, for the majority of people, the real life horror and the entertainment from media are distinctly different. Being entertained by media does not mean you don't appreciate real life horror.
I don't see why people should chastise this guy for having fun with a sim (DCS BS), recreating a hugely popular scene from a film. You don't even know the guy. He could even be a 12 year old kid for all we know (although I think Apocolipse Now is an 18!).
Incidentally, in all wars 'died a lot of innocent barefoot people'. Your simulated DCS wars would be no different if real. However you play this sim, you are simulating something which, if real, would be horrific. How do you think it is like to be trapped in a tank burning from the inside from one of those Vickrs? Does the fact the 18 year old inside volunteered during peace time make his torture any more bearable or less tragic?
Unless you fly all your missions with no weapons, you are simulating the horrors of real life. It is naive to suppose that 'fighting the regular army' somehow separates your fun in DCS BS from Prolixites.
In my opinion, no person who enjoys any war related media which sets out to entertain its audience can criticise Prolixite for enjoying it in his own way.