Tune down half a step to Eb...
Listen to the song for rhythm and exact amount of notes. 

/ - slide
. - palm mute

Riff A
|-----------------------------------------------|
|-----------------------------------------------|
|-----------------------------------------------|
|-2-2-2-2---------------------------------------|
|-2-2-2-2----------------------3333333355555555-|
|-0-0-0-0------0000000000000000-----------------|
  . . .        ................................

Riff B 
|------------------------------------|
|------------------------------------|
|------------2-0-2-------------------|
|-2--------3-2-0-2-3-2--------3-2----|
|-2--------3-------3-2--------1-0-3~-|
|---000000-------------000000--------|
    ......             ......

Riff C
|---------------------------------|
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-7-7-777-7-7-777-7-7-777-7-8-7-5-|
|---------------------------------|
  . . ... . . ... . . ... . . . .

|-----------------------------------|
|-----------------------------------|
|-----------------------------------|
|-----------------------------------|
|-7-7-777-7-7-777-7-7-777-7-12-11-8-|
|-----------------------------------|
  . . ... . . ... . . ... .  .  . .

|---------------------------------|
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-7-7-777-7-7-777-7-7-777-7-8-7-5-|
|---------------------------------|
  . . ... . . ... . . ... . . . .

|---------------------------------|
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-7-7-777-7-7-777-8-7-8-10-8-7----|
|---------------------------------|
  . . ... . . ...  

Riff D
|----------------------------|
|----------------------------|
|----------------------------|
|----------------------------|
|---------------------8-7----|
|-000-0-0-000-0-0-etc-6-5-3~-|
  ... . . ... . .
|--------------------------------|
|--------------------------------|
|--------------------------------|
|-----------------------5-7------|
|---------------------5-3-5--3-3-|
|-000-0-0-000-0-0-etc-3------1-1-|
  ... . . ... . .

Riff E
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-2-------3-2-0-2-------------3-0-|
|-2-------3-2-0-2-------------3-0-|
|---0-0-0---------0-0-0-0-0-0-----|

Riff F
|---------------------------------|
|---------------------------------|
|----7-------5----5---------------|
|-7--7----5--5----5--7------------|
|-7--5----5--3----3--7------------|
|-5-------3----------5----0-0-0-0-|
                          . . . .

Get ready for the BRIMSTONE! :)

Riff G
|----------------------------------------|
|----------------------------------------|
|-----------0-2-3-2-0-------2-0-------7--|
|-3-2-------0-2-3-2-0---3/2-2-0-2-----7--|
|-3-2-------------------3/2-----2-----5--|
|-----0-0-0-----------0-----------0-0----|
      . . .           .           . .

|------------------------------|
|------------------------------|
|------------------------------|
|-5----5--------5----5---------|
|-3333333333333333333333333333-|
|------------------------------|
   .... ........ .... ........

|------------------------------|
|------------------------------|
|------------------------------|
|-2----2--------4----4---------|
|-0000000000000022222222222222-|
|------------------------------|
   .... ........ .... ........

Riff H
Just follow the bassdrum with E5 powerchords
then these two breaks
|---------|
|---------|
|-7-------| 
|-7-------|
|-5---7~--|
|---------|

|---------------------|
|---------------------|
|-7--5----------------|
|-7--5--4-------------|
|-5--3--2-2-2-2-2-2-2-|
|---------------------|
          . . . . . .