Tune down to D (all string down one whole step).

riff 1

  guitar 1
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-----------------5-5-5-5-4-4-4---|
|-7-7-7-7-7-7-7-7---------------7-|
|-5-5-5-5-5-5-5-5-----------------|
|                                 |
| guitar 2                        |
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-----------------5-------4-------|
|-7-----------------------------7-|
|-5-------------------------------|


riff 2

  both guitars 
|-------------------------------|
|-------------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-------|
|-7-7-7-7-7-7-7-7-5-5-5-5-5-5---|
|-5-5-5-5-5-5-5-5-3-3-3-3-5-5-x-|
|-------------------------3-3-x-|


riff 3

  guitar 1
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-----------------5-------4-------|
|-7-----------------------------7-|
|-5-------------------------------|
|                                 |
| guitar 2                        |
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-----------------5---------------|
|-7---7---7---7-----------------7-|
|-5---5---5---5-------------------|


riff 4

  both guitars                    . . . . . . . .
|-------------------------------------------------|
|-------------------------------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-5-5-5-5-3-3-3-3-3-3-3-3-|
|-5-5-5-5-5-5-5-5-3-3-3-3-5-5-5-5-3-3-3-3-3-3-3-3-|
|-------------------------3-3-3-3-1-1-1-1-1-1-1-1-|


riff 5

  both guitars    . . . . . . . .
|---------------------------------|
|---------------------------------|
|-5-5-5-5-3-3-3-3-----------------|
|-5-5-5-5-3-3-3-3-5-5-5-5-5-5-5-5-|
|-3-3-3-3-1-1-1-1-5-5-5-5-5-5-5-5-|
|-----------------3-3-3-3-3-3-3-3-|


riff 6

  first only guitar 2, then both guitars
|-----------------------------|
|-----------------------------|
|-----------------------------|
|-----------------------------|
|--------7------------8-7-5-7-|
|-0--0-0---0-0--0-0-0---------|


riff 7

  both guitars
    ..    ..    ..          ..    ..    ..          ..    ..    ..        
|-------------------------------------------------------------------------
|-------------------------------------------------------------------------
|-------------------------------------------------------------------------
|-5---5-5---5-5---5-8-887-5---5-5---5-5---5-8-887-3---3-3---3-3---3-7-777-
|-5---5-5---5-5---5-8-887-5---5-5---5-5---5-8-887-3---3-3---3-3---3-7-777-
|-3-333-3-333-3-333-6-665-3-333-3-333-3-333-6-665-1-111-1-111-1-111-5-555-

     ..    ..    ..           ..    ..    ..          ..    ..    .. 
  --------------------------------------------------------------------------|
  --------------------------------------------------------------------------|
  --------------------------------------------------------------------------|
  -8---8-8---8-8---8-8-887--3---3-3---3-3---3-7-777-8---8-8---8-8---8-8-887-|
  -8---8-8---8-8---8-8-887--3---3-3---3-3---3-7-777-8---8-8---8-8---8-8-887-|
  -6-666-6-666-6-666-6-665--1-111-1-111-1-111-5-555-6-666-6-666-6-666-6-665-|


riff 8

 both guitars
  . . . . . . .
|-----------------|
|-----------------|
|-----------------|
|-2-2-2-2-2-2-2-2-|
|-2-2-2-2-2-2-2-2-|
|-0-0-0-0-0-0-0-0-|

( on the last repeat play only first 5 chords )


riff 9

 both guitars
  . . . . . . . .
|-----------------|
|-----------------|
|-----------------|
|-3-3-3-3-3-3-3-3-|
|-3-3-3-3-3-3-3-3-|
|-1-1-1-1-1-1-1-1-|

Listen yourself for the structure, I'm too lazy to type 
it here.