Main riff
e-------|------5------|-----5------|--5------|-6--------|
B-------|--------3----|-------3----|----3----|---3------|
G-------|----------2--|---------3--|------2--|------0---|
D-------|-------------|------------|---------|----------|
A-------|-------------|------------|---------|----------|
D-------|-------------|------------|---------|----------|

the build up riff      The release riff
e---------5-------||----3-------5------8-------7-------3------5-----|
B-----------3-----||------3-------3------6-------8-------0------3---|
G-------------2---||--------2-------2------5-------0-------0------2-|
D-----------------||------------------------------------------------|
A-----------------||------------------------------------------------|
D------0----------||------------------------------------------------|

This is the whole thing, but don't bother thanking me for transcribing it; Brian Davis 
transcribed it so go to his Facebook and thank him.
http://www.facebook.com/profile.php?id=1380871537