Great movie but a few hiccups

Rating: 9/10 (5 February 2020)

I spoil basically the main plot points of the movie in this review so if you haven't seen the movie I advice you to not read this.
Not for the highly sensitive person. The soldiers walk and crawl through mud and rotting corpses that couldn't have been picked up due to constant fighting and there are crows pecking at human remains etc. Depicts War in it's most gruesome state in my opinion. Never been to war though but I have to say that this is what I have always imagined WW1 trenches to have looked like.
Then the hiccups. Noticed only two though these aren't that bad in my opinion.
1. The dude swims/is carried away by the river quite some time and the message he carries is still readable in the letter? They must have had some waterproof ink during WW1.
2. Umm...the German sniper shoots the main character from a short distance so that the main character flies backwards. It's never told to the viewer what stopped the bullet from a sniper at that distance. Plus, can you survive flying down a flight of stairs and getting hit in the head? I assume you can so that just leaves the bullet. When stopped it. (Plot armor of course but let's be serious here)
But all together a great movie.