I know for a fact that Dr. Acula does not play in Drop D,
but I do, and this is how I play the song:


e------------------------------|
B------------------------------|
G---3-3-------------3~~--------| x2
D---3-3-------------3~~--------|
A---1-1---1-1---3-3-1~~--------|
D---------1-1---3-3------------|

e---------------------------------|
B------------------------3~-3-3-3-|
G---3-3-3----------------3~-3-3-3-|
D---3-3-3----------------1~-1-1-1-|
A---1-1-1--1-1-1---3-3-3----------|
D----------1-1-1---3-3-3----------|
        *      *       *   * * *
e--------------------------------|
B------------------------3~~-----|
G---3-3-3----------------3~~-----|
D---3-3-3----------------1~~-----|
A---1-1-1--1-1-1---3-3-3---------|
D----------1-1-1---3-3-3---------|
        *      *       *
e------------------------------------|
B---------------------------3~-3-3-3-|
G---3-3-3-3-----------------3~-3-3-3-|
D---3-3-3-3-----------------1~-1-1-1-|
A---1-1-1-1--1-1-1-1--3-3-3----------|
D------------1-1-1-1--3-3-3----------|
                          *
e------------------------------------|
B---------------------------3~-5/3/5-|
G---3-3-3-3-----------------3~-5/3/5-|
D---3-3-3-3-----------------1~-3/1/3-|
A---1-1-1-1--1-1-1-1--3-3-3----------|
D------------1-1-1-1--3-3-3----------|
                          *
e------------------------------------|
B---------------------------3~-3-3-3-|
G---3-3-3-3-----------------3~-3-3-3-|
D---3-3-3-3-----------------1~-1-1-1-|
A---1-1-1-1--1-1-1-1--3-3-3----------|
D------------1-1-1-1--3-3-3----------|
                          *
e-----------------------------------|
B--------------------------3~~~-----|
G---3-3-3-3----------------3~~~-----|
D---3-3-3-3----------------1~~~-----|
A---1-1-1-1--1-1-1-1--3-3-----------|
D------------1-1-1-1--3-3-----------|

And that's the way that I play the intro.
Honestly, I don't care for the rest of the song.
They should have made the song continue the same way as the intro.
Grindcore just isn't my thing.
Anyways, I hope that this tab has helped you if you couldn't figure out the song on your own.