My personal favorite war movie is We Were Soldiers, coincidentally another Mel Gibson film.
I was eagerly anticipating Hacksaw Ridge, and saw it the night after it opened. GREAT movie, on so many levels. Unlike Private Ryan, it didn't showcase a "peacenik". Rather, it treated Doss' deep-held convictions with great respect, and did an incredible job of showing just how unbelievably brave this man was.
I had read his CMOH citation (Click here) and noticed that something Doss did, in addition to the almost superhuman feats he accomplished, was left out of the movie. I told my wife afterwards that I wondered if it was because audiences might not believe it. I did a bit of Googling, and it turns out that was indeed the case! Gibson omitted a couple of Doss' acts after being wounded, as he feared people would think he just made it up!
By all means, go see this movie.
BTW, as I was researching Private Doss, I came across the 1959 episode of "This Is Your Life" which is about him: Link
thanks for the links, interesting.