Main Riff
e------3----------3--------3--------3-----|
B---------5----------5--------5--------5--|
G-4h5--------4h5--------4--------4--------|
D-----------------------------------------|
A-----------------------------------------|
E-----------------------------------------|

Other riff (enters with vocals along with the Main Riff. Might be on bass.)
e---------------------------------------|
B---------------------------------------|
G---------------------------------------|
D-10--------------------9--7------------|
A-----------------------------7--10-----|
E---------------------------------------|