tuning note - just like dropped d but all strings down 3 semi-tones
^ = hammer on / pull off
Intro
I------------------------------------------------------------|I
I------------------------------------------------------------|I
I------------------------------------------------------------|I
I---^---^----^----^---^----^----^---^----^----^---^----^-----|I
I--6-5-6-5--6-5--6-5-6-5--6-5--6-5-6-5--6-5--6-5-6-5--6-5----|I
I------------------------------------------------------------|I
 Riff A
I---------------------------------------------------|I
I---------------------------------------------------|I
I---------------------------------------------------|I
I----^------^-------^------^------^-------^---------|I
I--1--0---3--0----1--0---1--0---3--0----1--0--------|I
I--1--0---3--0--001--0---1--0---3--0--001--0--------|I
Riff B
I---------------------------------------------------------------------------------|I
I-----5-6------5-6------5-6-----------------5-6------5-6------5-6-----------------|I
I---------------------------------------------------------------------------------|I
I--7--------8--------9--------777-7-3----7--------8--------9--------777-7-3-------|I
I--5--------5--------5--------555-5-3----5--------5--------5--------555-5-3-------|I
I-----------------------------------3-------------------------------------3-------|I
Riff C
I------------------------------------------------------------------------|I
I------------------------------------------------------------------------|I
I------------------------------------------------------------------------|I
I--3-------------------------------3-------------------------------------|I
I--1-0-0-1-0-0-1-0-4-1-1-4-1-1-4-1-1-0-0-1-0-0-1-0-4-1-1-4-1-1-4-1-------|I
I------------------------------------------------------------------------|I
Riff D
I------------------------------------------------------------------|I
I------------------------------------------------------------------|I
I------------------------------------------------------------------|I
I---^-----^-----^--------------^-----^-----^-----------------------|I
I--0-1---0-1---0-1—-1-1-1-1---0-1---0-1---0-1—-1-1-1-1-------------|I
I--0-1---0-1---0-1—-1-1-1-1---0-1---0-1---0-1—-1-1-1-1-------------|I
Riff E
I---------------------------------------------------------------------------------|I
I---------------------------------------------------------------------------------|I
I---------------------------------------------------------------------------------|I
I-------------------------------------7--5--108-7--7--5--7--5--108-7--7--5--------|I
I--5—-3-—8-6-5—-5—-3-5--3—8-6-5—5--3--5--3--8-6-5—-5--3--5--3--8-6-5—-5--3--------|I
I---------------------------------------------------------------------------------|I
Im not sure exactly how many times each riff is played as some will be played 1 and ½ 
I think. But the basic order is the following:
-Intro
-Riff A
-Riff B
-Riff C
-Riff D
-Riff A
-Riff B
-Riff C
-Riff D
-Riff E
-Intro
-Riff A
-Riff B
-Riff C
-Riff D