Palm Mute | .
Let ring  | *

1st time thru bass
e||-------------------||
B||-11-12-11----------||
G||-------------------||
d||-------------------||
A||-------------------||
D||-------------------||

2nd time thru bass
e||-----12-13-12------||      (HI)e||11-12-14-12-11-9||  
B||11-12--------12-11-||
G||-------------------||  OR
d||-------------------||
A||-------------------||
D||-------------------||

3rd time bass thru
e||-------------------||
B||--11-12-11---------||
G||-------------------||
d||-------------------||
A||-------------------||
D||-------------------||

4th and final time bass thru (until distortion guitar)
e||-----11-12-11------||
B||-10*---------------||
G||-------------------||
d||-------------------||
A||-------------------||
D||-------------------||

Then, when guitar comes in and drowns the bass out, 
switch to distortion and play these 2 riffs.

e||--------------------------------------||
B||--------------------------------------||
G||--------------------------------------||
d||-4-5-4-0-1------------7-7-7-7-8-8-8-8-||
A||-4-5-4-0-1------------7-7-7-7-8-8-8-8-||
D||-4-5-4-0-1------------7-7-7-7-8-8-8-8-|| x2

e||--------------------------------------||
B||--------------------------------------||
G||--------------------------------------||
d||-4-5-4-0-1------------7-7-7-7-8-8-8-8-||
A||-4-5-4-0-1------------7-7-7-7-8-8-8-8-||
D||-4-5-4-0-1------------7-7-7-7-8-8-8-8-|| x5
Pm  . . . .