Great plot but..
You need to work on character proportions. One of the parts that sticks out most to me is when the main character is walking outside past the German guard. (Was that a building in the background, if so it needs to be much larger) The guard should have been larger than the main character since he was closer to the camera's point of view. Also, the scene with the sleeping quarters needs redone, it looks nothing like the rest of the video in a bad way. Too 2D. Try redoing this flash, it'll get a much better rating if you do. Try some shading, as well! : )