I'm not too sure about the correctness of this. Me and a friend figured it out on two guitars. One is supposed to be a bass I'm sure...but we didn't happen to have one laying around so we did what we could....what I'm really saying is that it's better than nothing. So here goes:
Guitar 1 (or bass) does this through the verses:
in barre or power chords (for guitar): F# E B F#
Along with that goes guitar 2 with these four chords: