Well....
The long hours you put into doing animation frame by frame really payed off. The artwork was pretty good as well. However, these were the only good qualities about your movie. It lacked sound/music, background, and any kind of plot. Not to mention the fact that it was all of ten seconds long.
If you could maybe add some dialogue (text or voiceover; doesn't really matter which), make it longer, have more than just a few guys with paintball guns walking around, and some sound effects/music, this could be a really good movie. For now, however, the shortness and pointlessness of this movie caused me to vote incredibly low on it. Keep improving and it'll turn out really well.