I wanted to read this once I saw that it started in Dachau, but unfortunately it reads more like a manual than a script.
You use a passive voice and you describe a scene like you're painting by numbers.
Let's take your opening paragraph for instance:
"There are several rectangular buildings on fire. On the
corner of a street there are supply trucks parked. People are
on the streets running in groups. Nazi soldiers are guarding
the front gates which surround the camp, they are armed with
rifles and sub-machine guns."
I hear a computer voice in my head when I read this. Try combining your sentences and use a little more color in your writing. Something like this:
"Throngs of people flee down a street between buildings engulfed in flames.
Heavily armed Nazi soldiers guard the front gate."
That basically describes your paragraph in two sentences. The trucks aren't important and the shape of the buildings doesn't seem to be important right now.
Shouldn't there be only one front gate? Having multiple front gates is like having multiple Lone Rangers. It just sounds wrong.
I just did the briefest of research into Dachau in 1942 and the Americans and Russians were nowhere near the place. Now I've completely checked out of your script.
I understand that this is fiction, but if you want me to believe your story, you have to do better than that.