Great Job!
Love the bloodbath you just brought to us! Even so, I'd be rude to not help you improve your future works.
Like every awesome flash (this one included), music would've help brought out the destructive element of this work, The music could be just a soft background, or the main theme accompanied by your animation.
Another point would be that the character movements were a bit clunky, or laggy. For some part of this animation, the sword fights or shooting didn't seem real enough. Because of your hard work I was tempted to think that it was my computer that was lagging.
Work up the bloodbath bro!