Tuning-  Down 1 whole step and drop D  So it is drop C

Main Riff:
-----------------------------------------------------------------------|
-----------------------------------------------------------------------|
-----------------------------------------------------------------------|
-0-x-x-x------------------------0--------------------------------------|
-0-x-x-x---------5-----7-5------0--------------------------------------|
-0-x-x-x---5-7-8---8-7-----<3>~-0--------------------------------------|

-------------------------------|
-------------------------------|
-------------------------------|
-x-x-x---------------------0-0-|
-x-x-x--------5-----7-<5>~-0-0-|
-x-x-x--5-7-8---8-7--------0-0-|

--------------------------------------------------------------|
--------------------------------------------------------------|
--------------------------------------------------------------|
-x-x-x------------------5-5-x-x-x-5----5---8-8-8-3-3-3-2-2-0--|
-x-x-x--------5-----7-5-5-5-x-x-x-5----5---8-8-8-3-3-3-2-2-0--|
-x-x-x--5-7-8---8-7-----5-5-x-x-x-5----5---8-8-8-3-3-3-2-2-0--|

Verse Riff:

------------------------------------------------------------------------|
------------------------------------------------------------------------|
------------------------------------------------------------------------|
-x-x-x--x-x---0--x-x---1p0-0-0-0-0-0-0-0--------1h3-8-8-8-3-3-3-2-2-0---|
-x-x-x--x-x---0--x-x---1p0-0-0-0-0-0-0-0--<3>~--1h3-8-8-8-3-3-3-2-2-0---|
-x-x-x--x-x---0--x-x---1p0-0-0-0-0-0-0-0--------1h3-8-8-8-3-3-3-2-2-0---|

from the verse riff just go straight to the main riff again..

Key:
<3>- Pinch harmonic (squeely)
x-mute on the neck not palm mute
~-vibrato