Tune to D Standard [DGCF]. 
Sounds like the band changed out the old root notes 
for their perfect fifths in a low tuning.
Anyways, here's my take on it...
 
Riff A (x4*** - see note)   [0:00-0:35]
F|---------------------------------|
C|---------------------------------|
G|------------3----------3~~3------|
D|-5-5-5~~3-5---5~~~~5-5-----3~~~~-|

***Note: Riff A has a slight variation on the last (4th) repeat...***
F|---------------------------------|
C|---------------------------------|
G|------------3----------3~~3------|
D|-5-5-5-3-55---5~~~~5-5-----3~~~~-|

Riff B (x4)   [0:36-0:54]
F|-----------|
C|-----------|
G|-----------|
D|-5~~~~~~~~-|

Repeat Riff A (x2)   [0:55-1:12]

Repeat Riff B (x4)   [1:13-1:30]

Repeat Riff A (x2)   [1:31-1:46]

Chorus (x2)   [1:47-2:02]
F|------------------------------------|
C|--------------7-7~~-----------7-7~~-|
G|-3~~3-5-3-0~~7-7----0---0----7-7----|
D|----------------------3---3---------|

Repeat Riff A (x6)   [2:03-2:49]   ***don't forget the slight variation on the 4th time!***

Repeat Chorus (x2)   [2:50-3:06]

Repeat Riff A (x4)   [3:07-3:38]   ***don't forget the slight variation on the 4th time!***

Repeat Chorus 'til fade   [3:39-4:37]