The characters.Not referring to the actual history here.

I have read some of the board topics, so I overall understood why some people like it and some people don`t, each backed up with tons of historic facts and theories.
But I fail to understand the depiction of the characters, being such crude ruthless cold-and-loving it killing machines. I know, i get it, those were some of the most violent times to live in. BUT, I am specifically baffled as to why they were so mechanical/bloodthirsty/cool guy like. I may be contradicting myself when i say i understand that it was extremely violent then, and then saying i don`t understand this aspect. However, it feels too unnatural to me, to see all those men with one purpose in mind and one only. Kill, kill our own, kill them too, tips and turns in actions, and such organised/unorganised ruthless conviction to just destroy while hating everything in the process. But then again i can conclude i didn`t like...the history itself?
I want to know if anybody got the same weird feeling after watching this movie.


Also, again i know its supposed to be accurate history here, but that was no ending to satisfy me. I don`t need unicorns s**tting rainbows out of their rear ends, but the point was to show how war was then and that`s all? I am aware what its trying to say, about innocence gone, about corruption, cruelty, chaos, soldiers =meat bags, traumatic experience and confusion, but where is the message... what was the purpose of showing all of these aspects, while most of them beautifully made and touching, if in the end it was just left hanging, and toned down, nothing good at all coming out of the whole experience?
i mean a little bit more meaning in the story is what i would have liked, i don`t mean "feed me with fables of right and wrong" kind of ending.

That`s how i understood it, and whoever had a well defined different opinion i`d like them to share the insight with me, please.