E|-------------------------------------------------------------------------|
B|-------------------------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|---4-5-7---4-5-7---4-5-7---4-5-7---4-5-7---4-5-7---4-5-7---4-5-7---------|
A|-5-------5-------5-------5-------5-------5-------5-------5---------------|
E|-------------------------------------------------------------------------|

[Main riff](with delay) (x4) (stacatto)
E|-------------------------------------------------------------------------|
B|-------------------------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|---4-5-7---4-5-7---4-5-7---4-5-7-------4-------4-------4-------4---------|
A|-5-------5-------5-------5---------5-7-----5-7-----5-7-----5-7-----------|
E|---------------------------------7-------7-------7-------7---------------|

[now just play this chord heaps]
E|-------------------------------------------------------------------------|
B|-7-7-7-7-7-7-7-7-7----| etc...---------------------------------------------|
G|-7-7-7-7-7-7-7-7-7----| etc...---------------------------------------------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|

[back to the main riff](x2)(stacatto)
E|-------------------------------------------------------------------------|
B|-------------------------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|---4-5-7---4-5-7---4-5-7---4-5-7-------4-------4-------4-------4---------|
A|-5-------5-------5-------5---------5-7-----5-7-----5-7-----5-7-----------|
E|---------------------------------7-------7-------7-------7---------------|

Then this slight variation once (staccato except for higher note, F#)
E|-------------------------------------------------------------------------|
B|---------------7---------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|---4-5-7---4-5-----4-5-7---4-5-7-------4-------4-------4-------4---------|
A|-5-------5-------5-------5---------5-7-----5-7-----5-7-----5-7-----------|
E|---------------------------------7-------7-------7-------7---------------|

If you want I play the bass note every now and then (maybe the guitar does too..?) which 
be:
E|-------------------------------------------------------------------------|
B|-------------------------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|---4-5-7---4-5-7---4-5-7---4-5-7-------4-------4-------4-------4---------|
A|-5-------5-------5-------5---------5-7-----5-7-----5-7-----5-7-----------|
E|---------------------------------7-------7-------3-------3---------------|

Then play that same chord again for the pre-chorus:
E|-------------------------------------------------------------------------|
B|-7-7-7-7-7-7-7-7-7------| etc...-------------------------------------------|
G|-7-7-7-7-7-7-7-7-7------| etc...-------------------------------------------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|

and as far as I can tell the chorus is the same, just keep strumming...

[Back to verse]
Just bass for one measure
alteration of the main riff (x4)
Palm muted a little bit more
E|-------------------------------------------------------------------------|
B|-------------------------------------------------------------------------|
G|-------------------------------------------------------------------------|
D|-7-5-4---7-5-4---7-5-4---7-5-4---4-------4-------4-------4---------------|
A|-------5-------5-------5-------5---7-5-----7-5-----7-5-----7-5-----------|
E|---------------------------------------7-------7-------7-------7---------|

During verse a 2nd guitar comes in with some natural harmonics
E|-------------------------------------------------------------------------|
B|----7*-------------------------------------------------------------------|
G|-7*---------5*---(wha| mmy bar, depress)-----------------------------------|
D|---------5*--------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|