Okay... after watching them live, i'm pretty sure this is how they play it:
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Intro/Verse:                                                                     
     A        Dsus2      C         C     
e|---0-0---0---0-0---0---0-0---0---0-0---|
B|---2-2---0---2-2---0---1-1---0---1-1---|
G|---2-2---0---3-3---0---0-0---0---0-0---|
D|---2-2---0---0-0---0---2-2---0---2-2---|   
A|---0-0---0---0-0---0---3-3---0---3-3---|
E|---------------------------------------|

  Cadd11
     |   Fmaj7/C
e|---0---0-0---------|
B|---1---1-1---------|      <--- hammer-on from the C to the F  
G|---0--h2-2---------| (x4)       
D|---3---3-3---------|   
A|---3---3-3---------|
E|-------------------|

At the end of the 4th time, play one open strum straight after it.
Then start the verse again. Play the whole verse 5 times.

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Chorus:

Dsus2  |  A  |  Fmaj7/C  |  (x2)

Any strumming will do, as long as you get a feeling for the rhythm.

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Bridge:

A  |  G  |  F#  |  F  |  E  |

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That's it, as far as what the rhythm in the song goes like.

Play the same chords from the chorus in the outro, and end the song on a Dsus2.