I think this song uses two guitars with different tunings.  The first guitar 
  is in standard tuning.  The second guitar is tuned down to drop d and then
  tuned down to G flat.
  
 INTRO&CHORUS-GUITAR 1(CLEAN)  
-|-x-x-5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-33-33-33---------------
-|-x-x-5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-33-33-33---------------
-|-x-x-7-7-77-77-77--6-6-66-66br-66--5-5-55-55-55--4-4-44-44-44---------------
-|-x-x-7-7-77-77-77--7-7-77-77br-77--5-5-55-55-55--5-5-55-55-55---------------
-|-x-x-5-5-55-55-55--7-7-77-77br-77--3-3-33-33-33--5-5-55-55-55---------------
-|-x-x-5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-33-33-33---------------
                                                                              

-|-----5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-2----------------------
-|-----5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-2----------------------
-|-----7-7-77-77-77--6-6-66-66br-66--5-5-55-55-55--4-4-3----------------------
-|-----7-7-77-77-77--7-7-77-77br-77--5-5-55-55-55--5-5-4----------------------
-|-----5-5-55-55-55--7-7-77-77br-77--3-3-33-33-33--5-5-4----------------------
-|-----5-5-55-55-55--5-5-55-55br-55--3-3-33-33-33--3-3-2----------------------
                                                                              
  FILL 1-GUITAR 1(DISTORTION)
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|-4-5-4-5-4-5-4-----4-5-4-5-4-5-4-----4-5-4-5-4-5-4-----4-5-4-5-4-5b---4b----
-|-4-5-4-5-4-5-4-3-2-4-5-4-5-4-5-4-3-2-4-5-4-5-4-5-4-3-2-4-5-4-5-4-5b---4b----
-|---------------3-2---------------3-2---------------3-2----------------------
-|----------------------------------------------------------------------------
                                                                              
  VERSE-GUITAR 2(DISTORTION)
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|-00000-00-00-00-00000-00-00-00-00000-00-00-00-00000-00-00-00----------------
-|-00000-00-00-00-00000-00-00-00-00000-00-00-00-00000-00-00-00----------------
-|-00000-00-00-00-00000-00-00-00-00000-00-00-00-00000-00-00-00----------------
                                                                              

  RIFF-GUITAR 1(DISTORTION)
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|-4/2/4-5--------------------------------------------------------------------
-|-4/2/4-5--------------------------------------------------------------------
-|----------------------------------------------------------------------------
                                                                              
  FILL 2-GUITAR 1(DISTORTION)
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|-44-2-4-4-2-2-2-4-4-5-------------------------------------------------------
-|-44-2-4-4-2-2-2-4-4-5-------------------------------------------------------
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
                                                                              
  FILL 3-GUITAR 2(DISTORTION)
-|----------------------------------------------------------------------------
-|-----------------------------------------------------------------------0----
-|-----------------------------------------------------------------------0----
-|-00000-00000-00000-00001-00000-00000-00000-00001-00000-00000-00000-00001----
-|-00000-00000-00000-00001-00000-00000-00000-00001-00000-00000-00000-00001----
-|-00000-00000-00000-00001-00000-00000-00000-00001-00000-00000-00000-00001----
                                                                              

-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|----------------------------------------------------------------------------
-|-00000-00000----------------------------------------------------------------
-|-00000-00000----------------------------------------------------------------
-|-00000-00000----------------------------------------------------------------
                                                                              
  INTRO
  FILL 1
  VERSE
  VERSE(RIFF)
  FILL 1
  VERSE
  VERSE(RIFF)
  CHORUS
  FILL 2
  FILL 3
  VERSE(RIFF)
  CHORUS
  CHORUS(DISTORTION-STRUM ALL CHORDS ONCE)
  FILL 2
  VERSE(RIFF)