I have to agree with XsakuX, the Vocals and audio composition are wonderful, but as stated prior, your song itself is not of the best quality - midi does not a good song make. Perhaps you should choose a different music system to do this one, as the current one doesn't do it any justice. Also, as XsakuX has already stated, you need to work on the volume in certain portions, at one point, I can clearly hear what is being said, but in the next, all I can hear is the music (which, as I mentioned before, isn't that great.) Also, try to do less vocal repetition and add more characters - The Scout, Medic, and Demoman have some of the best lines in the game. I hate to sound so critical, but know that I only critisize you because I see a magnificent amout of potential for this song! All in all, it's a wonderful experiment that has magnanamous amounts of potential, and I for one hope that you at least take into consideration what I've said, as I hardly ever leave a comment, much less a true, heart-felt critique, unless I truly see something in the subject.
Best of wishes for your future endeavors, and my God smile upon your life and help you face the coming days with a smile on your face!
Sincerely,
Gustauve Adolfus Wilhelm von Drakenhime III