Wow, definately not dissapointed! Only thing i would fix is to make Chesters voice a little bit more aggressive but that's about it. Sounds a bit like A7X at times to me not sure why. Great song overall. And most inmportantly.. Has balls.
Would it even matter if it sounded like it could've been written in 10 seconds or 5 seconds? All that matters is how it sounds not how difficult it is to make. If someone likes how it sounds just let it be. No need to be a douche.