Here is the bass intro for guitar.  I know it is not perfect, but it sounds close enough for an alternative 
to the bass.
Drop D tuning
(h) Hammer On
(0) Optional note, your choice.
Guitar Intro:
e|-----------------------------------------------------------------------------------------|
B|-----------------------------------------------------------------------------------------|
G|-----------------------------------------------------------------------------------------|
D|-----------------------------------------------------------------------------------------|
A|--0-13h-15h--0-10h-12h---15-12---X--X----------------------------------------------------|
D|-(0)--------(0)----------0--0----12-12---0-13h-15h---0-15h-17h---0-10h-12h---0-10h-12h---|