After better sounds?
Hey man, this is pretty good.
Sounds like you used Slayer/Slayer 2?
If I may put in a word, If you're after a better guitar sound.
I strongly recommend MusicLab Realstrat + Guitar Rig 3
I got heaps of recommendations if you want to know lol
Bass Guitar - Trilogy
Drums - Addictive Drums
Guitar - Realstrat + Guitar Rig 3
Hope this helps!
They are pretty awesome! You should check them out if you like.
Btw, Nice song =)