This may not be 100% correct, but it's more accurate than some of
this ace song, the more I'll send. But, for now, here's the basics.

I'm not sure what the exact tuning is, but dropped D will do ,nicely.

e----------------------------------------------------------|
g----------------------------------------------------------|
b----------------------------------------------------------|            Play
d----------------------------------------------------------|            this
a----5/4--8/7--5/4--x12-11--xx5/4--8/7--5/4--x12-11--------|            twice.
d----5/4--8/7--5/4--x12-11--xx5/4--8/7--5/4--x12-11--------|

Then, comes the bass bit. You can sort of play it on guitar like
this.

e----------------------------guitars----------------b--------------------|
g----------------------------again..----------------a--------------------|
b----------------------------        ----------------s-------------------|
d----------------------------        ----------------s-------------------|
a----------------------------        -x12--[000]--11-|--12--[0-0-0]--11--|
d--0-0--5/4--0--8/7--0--5/4--        -x12--[000]--11-r--12--[0-0-0]--11--|
                                          palm      i
                                          muted.    f
                                                    f
Here comes the awesome main riff.

e---------------------------------------------------------|
g---------------------------------------------------------|
b---------------------------------------------------------|
d---------------------------------------------------------|     play
a----5/4--8/7--5/4--8/7--5-4----5/4--8/7--5/4--8/7--5-4---|
d----5/4--8/7--5/4--8/7--5-4----5/4--8/7--5/4--8/7--5-4---|
                                                                                this
e---------------------------------------------------------|
g---------------------------------------------------------|
b---------------------------------------------------------|     twice.
d---------------------------------------------------------|
a----5/4--8/7--5/4--8/7--5-4----5/4--8/7--5/4--x12-xx11---|
d----5/4--8/7--5/4--8/7--5-4----5/4--8/7--5/4--x12-xx11---|