Ok... here is my review
Well, to start things off, RIGHT away, the voice acting ruined the feeling. The ending, even if it is a trailer, should not be so abrupt. Also, NEVER drag out scenes that long (sniper scene), You could have made it 10 seconds instead of a minuite. If you drag scenes out that long, you ruin the mood, resulting in low scores and people pointing and laughing. Try to have some different prespectives so the viewer has a better idea of the surroundings/what is going on, it tends to help the viewers understanding of the flash animation. The style was nice, at times I was quite into it and I think that if you follow my advice, and the advice from others, and put a considerable amount of work into it, you may be able to create a good flash movie.