Honestly, most MTL's cant even give you a general idea of the story
I disagree with giving you a general idea, but the exact phrases in a situation make very little sense from time to time.
If you wanna improve it you can get
Translator++ and open "translation.trans" within "translation_file.7z" in the game folder. With that you can correct the game. Map by map. Line by line.
If you're not satisfied with the existing translation then use one of the other translation engines and compare.
I still don't know exactly how to use the translation file without things breaking, but there are others who do. You can upload your edited "translation.trans" here and let others export it into the game.