This riff sure is a killer! Make sure to use 100 % downstrokes, hard picking as well as palm muting on the low e-string.
Don't miss Randy's excellent solo which can be found here.
e|---------------------------------|
b|---------------------------------|
g|---------------------------------|
d|---------------------------------|
a|-----4---5---4---2-0---0-2-0-----|
e|-2-2---2---2---0-----4-------4-0-|
Good luck! |