Listen to the song for timing it?s acutally really easy.

Intro
This song starts with drum intro then ?Labotomy? 4 times on the third and fourth play 
this.
Pt.1
G--------------|
D--------------| x2
A-7-9----------|
E-----77777777-|

Then play this
Pt.2
G----------|
D----------| x4
A-7777-5---|
E--------5-|

Pt.3
G------------|
D------------| x2
A-----555555-|
E-5-3--------|

Verse
G-------------------|
D-------------------| x3
A---------77777777--|
E--5555555----------|

Intro Pt.1 x2(but without yelling labotomy)

Intro Pt.2 x4

Intro Pt.3 x2

Verse x3

Intro Pt.1 x2(but without yelling labotomy)

Intro Pt.2 x4

Intro Pt.3 x2

Intro Pt.1 x2 (with yelling labotomy)

Intro Pt.2 x4

Intro Pt.3 x2

Verse x3

Intro Pt.1 x2(but without yelling labotomy)

Intro Pt.2 x4

Intro Pt.3 x1

Then end like this
G-------|
D-------|
A-----5-|
E-5-3---