I think this is correct

(standard tuining)

*=Palm Mute

Intro G1
1-------------------------------
2-------------------------------
3-------------------------------  X4
4------------------------------- 
5-5-7-9-5-5-7-9-5-7-9-7-9-10-9-5
6-------------------------------

Intro G2

1---------------|------------
2---------------|------------
3-7-------7-----|7----------7
4-7-7-9-5-7-7-5-|7----------7
5-5-7-9-5-5-7-5-|5-5*-5*-5*-5 
6---5-7-3---5-3-|------------

Play whats in the bar when G1 has finished playing its intro and play G2's part while G1 is playing its part