Ok first of all-
Heads do not extend that far out from the body. That was the main thing that bugged me about this.
It was bad, the tutorials gave off the wrong and bad ideas. The walking was just horrible. The same up and down animation throughout the entire thing. No changing angles or speeds, just same up and down. And the feet were looped horribly.
The gun thing was also bad. AK-47's give off MUCH more kick back than what you emphasized. That firing you did was more suitable for a Mac 10. And there IS still kick back when walking, it alters the angle of the body.
The "reloading" thing was horrible too. You need to pay more attention to what you're doing, you can't insert a clip straight up into an angled hole. IT'S JUST NOT POSSIBLE.
And will you ever learn how to position the heads. When you're shot, and fall to the ground, your head doesn't just stick up. Learn how to position sprites.
Over all, this was a bad tutorial, note that only people who are actually experts at Madness should make the tutorials.