Main Riff
G-----------------------------------------------
D-----------------------------------------------
A-3-3-3-3-5-6-6-6-6-5-1-1-1-1-5-3-3-3-3-1------
E------------------------------------------------

Bridge
G-----------------------------------------
D-----------------------------------------
A-3-3-3-3-5-6-10-8-8-5-5-5-5-6-3-3-3-3---
E------------------------------------------

Thats about it the main riff is played throughout the song
Bridge is played during the first solo after the chorus
the second solo is the main riff