h = hold note
Main riff
G-------------
D-5-4---5-4---
A-----5-----3-
E-------------

Riff 2
G-------------
D--2h---5h----
A----3h----5h-
E-------------

End
G--------------
D-5-4---5-4----
A-----5-----3h-
E--------------

if u cant play this dont play bass lol :-P

Order:
Main riff X 6
Riff 2 X 4
Main riff X 6
End X 1

There ya go