Here is the correct power chords that are played during the wailing in the intro.

-----------------------------------------------|
-----------------------------------------------|
9-9--9-9-9--6-6--6-6-6-------------------------|  Repeat 3 times
9-9--9-9-9--6-6--6-6-6--6-6--6-6-6--6-6--6-6-6-|
7-7--7-7-7--4-4--4-4-4--6-6--6-6-6--6-6--6-6-6-|
------------------------4-4--4-4-4--4-4--4-4-4-|

If you have any corrections to make, please email me at nic_2090@hotmail.com. This is a 
song, so don't fuck it up by playing it wrong.