Okay, I've seen the other tabs, and they sound okay, but everyone is putting two guitars
the start, which I'm pretty sure (although it works) isn't how My Chem do it. I figured
this bit a while ago, and I'm pretty sure it's what Ray plays. Though I could be wrong, 
goes:

Key:
 : - Repeat
 b - Bend
 p - Pull Off
 h - Hammer On
 . - Palm Mute

E| ---------------0--|----------------0--|
B|:---------------0--|----------------0--|
G| ---------------0--|----------------0--|
D| -2-2-2-2----------|-2-2-2-2-----------|
A|:-2-2-0-2---2-4b---|-2-2-0-2---2-4p2---|
E| -0-0-0-0---0------|-0-0-0-0---0-------|
    . . . .            . . . .

E|-----------------|-------------------|
B|-----------------|-------------------|
G|-----------------|-4-4-2-4--------4--|
D|-2-2-2-2-2-2-2-2-|-4-4-2-4--2-0h1-4--|
A|-2-2-0-4-2-2-0-4-|-2-2-0-2--0--------|
E|-0-0-0-0-0-0-0-0-|-------------------|
   . . . . . . . .   . . . .  .

E|------------------|----------------0-|
B|----------------0-|----------------0-|
G|-2-2-2-2--------0-|-2-2-2-2--------0-|
D|-2-2-0-2--2-0h1---|-2-2-0-2--2-0h1---|
A|-0-0-0-0--0-------|-0-0-0-0--0-------|
E|------------------|------------------|
   . . . .            . . . .

                       ENDING 1 (Play 1st Time)
E|----------------- |   |---------------0-|
B|-----------------:|   |---------------0-|
G|-2-2-2-2-2-2-2-2- |   |---------------0-|
D|-2-2-0-2-2-2-0-2- |   |-2-2-0-2---------|
A|-0-0-0-0-0-0-0-0-:|   |-2-2-0-2--2-4p2--|
E|----------------- |   |-0-0-0-0--0------|
   . . . . . . . .        . . . .

 ENDING 2 (PLAY 2nd time)
  E|-------------|----3-3p0--|
  B|-------------|-0h2-0-----|
  G|-2-2---------|-----------|
  D|-2-2--4-4--2-|-----------|
  A|-0-0--4-4--2-|-----------|
  E|------2-2--0-|-----------|


Okay, I added palm mutes, and a little bit at the end. There's also a slight variation 
the 2nd part of the verse. Hope it's okay.