This is a great song and a couldnt find the bass tab anywhere,so a took the time to tab 
myself. This is my first tab but am pretty sure this is quite right. Standard Tuning, 
:}

Riff A
|---------------------------------------|
|----------------------------464---475--| times 2
|2--1---2--1-4444---2--1----2---2-3---3-|
|-00-----00----------00----2-----3------|

Riff C
|--------|
|--------|
|--------|
|1-4-2-5-|

Riff B
|--------------------------------------------------------|
|--------------------------------------------------------| times 3,then
|1--1--1--212-1--1--1--5---------1--1--1--1--212---------| back to RiffA
|-00-00-00-----00-00-00--0356235--00-00-00-00----1-4-2-5-|

Riff D
|-------------------------------|
|-------------------------------|
|-------------------------------|
|000-000-000-000-000-000-000-000|

Riff E
|--------------|
|--------------|
|1--1h4--2h5---| times 6 then Bass fill
|-00---00---00-|

Bass fill
|---------------|
|---------------|
|---1--13-131---| This I made by ear, play it fast and it should fit.
|134-34--4---431|

Riff F, under solo
|-----------------------------|
|-----------------------------|
|------1-1-1-1----------------|
|000000--------000000-1-1-1-1-|

The Breckdown
|-----------------------------------|
|11--12---9-11--6--7-4-6--6--7--4-6-|
|--99--9-9-------44-4-4----55--5-5--|
|-----------------------------------|

Riff H, under end solo
|--------------------------|
|--------------------------|
|--------------------------|
|22222222222224-00000000004|

Go back and finish with the breckdown and end with the F sharp
on the low E.

Well thats it,all the riffs are here its just a matter of putting
then in the order. Email me if you want if you wish to correct me,
but go easy its my first tab. Thanks