This song is in Drop D tuning - for me anyways...
Intro/chorus
the strumming, listen to the song
D I--7-/-5--/3--/5----------I
I--7-/-5--/3--/5----------I
I--7-/-5--/3--/5----------I
I-------------------------I
I-------------------------I
I-------------------------I
verse
I--222-22-22-222-222----------I
I-----------------------------I
I-----------------------------I
I-----------------------------I
I-----------------------------I
I-----------------------------I
after the first chorus, its the same as the verse
after the second chorus
I-2-0-0--3-3-3-0-0--5-55-/6--I
I----------------------------I
I----------------------------I
I----------------------------I
I----------------------------I
I----------------------------I
heavier
I-2-0-0--3-3-3-0-0--5-55-/6-66--I
I-2-0-0--3-3-3-0-0--5-55-/6-66--I
I-------------------------------I
I-------------------------------I
I-------------------------------I
I-------------------------------I
clean guitar after the third guitar
I-------------------------------------I
I--7-------7/5--7-----3------3/5------I
I----9------------------5--5----------I
I--------0----------------4-----------I
I------0----------0-------------------I
I-------------------------------------I