Here goes

Beginning riff played with no distortion.

e---------------------|
a---------------------|
d-8----------------6--|
g---10-8-10-8-6-8-6-8-|
b--9-------------6----|
e---------------------|

thats played a second time, but after drums kick in and played with distortion.
after that plays again

e-----------------------------------------------|
a-----------------------------------------------|
d-8---------------------------------------------|
g---10-8-10-8-6-8-10p8h10p8h10p8-10p8h10p8h10p8-|
b--9--------------------------------------------|
e-----------------------------------------------|

those two riffs play a bunch of times, then to end it and get to the verse, theres this little thing

g-10-8-13

K.