This is my first shot at a tab so it's not that great:
DISTORTION
Intro
D|----------|
A|----------|
D|----------|
G|3/0-------|
B|---3/0----|
e|------3/0-|
D|----------------------|
A|----------------------|
D|----------------------|
G|0-0-3/0-3/0--5-5--8-8-| x4
B|0-0-3/0-3/0--5-5--8-8-|
e|0-0-3/0-3/0--5-5--8-8-|
Verse
[ Tab from: http://www.guitaretab.com/t/the-showdown/85277.html ]
D|--------------------------------------|
A|--------------------------------------|
D|--------------------------------------|
G|0-0-3/0-3/0------0-0-3/0-3/0--5-5--8-8| x4
B|0-0-3/0-3/0------0-0-3/0-3/0--5-5--8-8|
e|0-0-3/0-3/0------0-0-3/0-3/0--5-5--8-8|
Chorus
D|--------------|
A|--------------|
D|--------------|
G|55-0-0--88-0-0| x4
B|55-0-0--88-0-0|
e|55-0-0--88-0-0|