Intro is played palm muted, except for the last two notes the second time it's played.

E|------------------------------------------------|
B|------------------------------------------------|
G|------------------------------------------------|
D|-------------------------------------------| X 2-|
A|----222222277776666666444444444447777666666-----|
E|4444--------------------------------------------|

Figure out the rythem, it's not that hard.

Ok second part of the intro, not palm muted this time.

E|-------------|
B|-------------|
g|-446644774466 x 6
D|-------------|
A|6------------|
E|4------------|