I've seen the the Metallica version on this site, and this tab is exactly the same in
sound, but easier to play. You have to listen to the song a couple times to get the
timing down. This is the intro and main riff, all I could figure out, sorry.

[Intro]
e|------------------|-----------------|-----------------|-----------------|
B|------------------|-----------------|-----------------|-----------------|
G|------------------|-----------------|-----------------|-----------------| x8
D|-12-----9---------|-7-6---9---------|-5-4---5---------|-7-6---7---------|
A|-10-----7---------|-5-4---7---------|-3-2---3---------|-5-4---5---------|
E|--------------0-0-|-------------0-0-|-------------0-0-|-------------0-0-|
                P.M.              P.M.              P.M.              P.M.
[Main Riff]
e|-----------------|-----------------|
B|-----------------|-----------------|
G|-----------------|-----------------|
D|-----5-----------|-----------------|
A|-------7---------|-5-7---------5-7-|
E|-0-0---------0-0-|-------0-5-7-----|
   P.M.        P.M.        P.M.-|