Remixed too often, but good.
Shortened version of my review: I don't like the fact that the song is remixed so often. But every artist likes to put their own version out into the world, each with its own unique take on the subject at hand, so I've decided not to penalize and give my 10/10 based on the work.
I initially intended on deducting a point from the score due to the subject. The original song is great and brings back memories, but I've heard this song "metalized" before. However, after listening to the song all the way through I decided that, although it has been done before, I should rate this song based on its quality. After all, movies often take the same tale and put a new writer and director's ideas into the mix and it would hardly be fair to deduct points based solely on whether or not the subject has been used before (Had that been true, The Dark Knight would have been knocked down a few points, despite how great I thought it was...)
All in all, great job. Audio quality wise, the notes sound nice and sharp from my speakers The notes don't deviate too far from the original song; I'm glad you didn't go overboard "remixing" it. The song seems to have a heroic twist to it, which I enjoy, and the song has a nice, definitive end. Again, good job and I can't wait to see what you will create next.