This is so f***ing easy:

Intro:

-------------------------------------------------------------------------
-------------------------------------------------------------------------
-------------------------------------------------------------------------
--7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7--
--7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7--
--5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5--

Main Riff:

e--------------------------
B--------------------------
G-------7-7----------------
D--7----7-7----5--5---7-7--
A--7----5-5----5--5---7-7--
E--5-----------3--3---5-5--

Riff 2:

e----------------------------------
B----------------------------------
G--7--7----------------------------
D--7--7--5-5-5-5--7-7-7-7-7-7-7-7--
A--5--5--5-5-5-5--7-7-7-7-7-7-7-7--
E--------3-3-3-3--5-5-5-5-5-5-5-5--

Order: 

Intro X 1
Main Riff X 18
Riff 2 X 4
Main Riff X 8
Riff 2 X 8
Main Riff X 4
Main Riff X