Sorry if a couple of bits are wrong. 
This is my first ever tab but I think ALL of it is right.
got it from a couple of tabs and fixed it all as none of them were right!

Intro!
e|-----------------------|\                                
B|--3-----3--1-----1p0---| \                               
G|--0-----0--0-----0-----|  \       Repeat this            
D|-----------------------|  /Four Times On the fourth play 
A|-----------------------| /              |                 
E|--3--3--------3--------|/               |                 
                              /           |
e|-----------------------|   /            |
B|--3-----3--1-----3-----|  |-------------|
G|--0-----0--0-----0-----|   \
D|-----------------0-----|    \
A|-----------------3-----|
E|--3--3--------3--------| 
Verse 
e|-------------------------------|
B|----3-3---3-3---3-3---3-3--3---| Play this throughout the verses, listen 
G|----0-0---0-0---0-0---0-0--0---| to the song for all the timings!
D|----0-0---0-0---0-0---0-0--0---| If you have a second guitar have it play 
A|--------------0------------3---| the chords as Arpeggios (has a much more 
E|--3-----2-----------0----------| harmonic sound)

Pre-Chorus
e|------------------------------------------|
B|------3--3-3---3--3-3---3--3-3---3--3-3---| You can pick up speed here 
G|------0--0-0---0--0-0---0--0-0---0--0-0---| towards the end, gives a
D|------0--0-0---0--0-0---0--0-0---0--0-0---| better feeling as it shifts
A|------x--x-x---x--x-x---2--2-2---3--3-3---| the chorus
E|------3--3-3---2--2-2---x--x-x------------| You can either Strum this or 
        D  D U   D  D U   D  D U   D  D U D PM the first "U" on each double  
Chorus "I'm empty..."
e|------------------------------------|
B|------3-333---3-333---3-333---3-333-| There is loads of ways to play this 
G|------0-000---0-000---0-000---0-000-| but i think that this way
D|------0-000---0-000---0-000---0-000-| sounds spot on.
A|------x-xxx---x-xxx---2-222---3-333-| Best played acoustic to be honest.
E|------3-333---2-222---x-xxx---------| You can either Strum this or If you want 
        D DUD   D DUD   D DUD   D DUD     PM the first D U on each triple
Verse
e|-------------------------|
B|----3---3---3---3---3----|
G|----0---0---0---0---0----|
D|----0---0---0---0---0----|
A|----------0-------3------|
E|--3---2-------0----------|

Pre-Chorus
e|------------------------------------------|
B|------3--3-3---3--3-3---3--3-3---3--3-3---| You can either Strum this or
G|------0--0-0---0--0-0---0--0-0---0--0-0---| if you want
D|------0--0-0---0--0-0---0--0-0---0--0-0---| PM the first U on each double
A|------x--x-x---x--x-x---2--2-2---3--3-3---|
E|------3--3-3---2--2-2---x--x-x------------| 
        D  U D   D  U D   D  U D   D  U D      
Chorus "I'm empty..."
e|--------------------------------------|
B|------3-333---3-333---3-333---3-333---| You can either Strum this or if you
G|------0-000---0-000---0-000---0-000---|want PM the first D U on each triple
D|------0-000---0-000---0-000---0-000---| 
A|------x-xxx---x-xxx---2-222---3-333---|
E|------3-333---2-222---x-xxx-----------| 
        D DUD   D DUD   D DUD   D DUD   
 Over the bridge I just play the Intro/Verse slowed down:- Not sure what the guitar
 ACTUALLY does at this bit.
Sorry, if anyone knows comment and I will add it 



Chorus "I'm empty..."
e|--------------------------------------|
B|------3-333---3-333---3-333---3-333---| You can either Strum this or if 
G|------0-000---0-000---0-000---0-000---| you want PM the first D U on each 
D|------0-000---0-000---0-000---0-000---| triple
A|------x-xxx---x-xxx---2-222---3-333---|
E|------3-333---2-222---x-xxx-----------| 
D DUD   D DUD   D DUD   D DUD   

 Repeat the chorus one final time HOWEVER!
 play it simply, just one or two chord strums
 and play very softly.
End on e|-----|
       A|--3--|
       G|--0--|
       D|--0--|
       A|--x--|
       E|--3--|

************************************

| /   slide up
| \   slide down
| h   hammer-on
| p   pull-off
| ~   vibrato
| +   harmonic
| x   Mute note
| b   Bend
| pb  Pre-bend
| br  Bend release
| pbr Pre-bend release
| brb Bend release bend

************************************