Here's the main rhythm guitar for this old Thrash classic. All riffs you need are here, and we'll show the lead licks / solos in a separate ActionTab. The riffs for this song are not really hard - it's the speed which is tricky. But remember, speed always comes with practice. Concentrate on getting the riffs right first:
Intro - This is really simple. Stab the powerchords, and mute the strings between stabs. Use both hands for muting (check out the Muting section for more information on this technique).
Riff 1 - This is a very short, repeating riff. Slight variations of it are used throughout the song verses. Pick the Low E string as shown and add the powerchords. Repeat after this A5 - G5 sequence.
Riff 2 - This is just a variation of Riff 1. The difference is that regular palm muted downstrokes are used for the Low E string. If you can play Riff 1, this will be easy.
Just repeat Riff 1 and Riff 2 again until the next part of the song arrives...
Riff 3 - These next 3 riffs serve as a kind of bridge / chorus in the song. This is slower than the previous riffs, and not complicated. Repeat 4 times. End on this Bb5.
Riff 4 - Although faster, this is still just a short repetitive lick. It is based around the melody of riff 1, but played quite differently from that riff.
Riff 5 - Basically Riff 4 again, but with palm muting.
Play Riff 4 again, then do this bridging riff...
Riff 6 - This bridging Riff is just another variation of Riff 1 again, except this time each riff ends with Tail 1 - Tail 2 - Tail 1 (again).
Finish with a dead stop (mute all the strings) and then repeat the whole lot again. The only new stuff from here on is in the outro:
Outro - This is just more of the same style of licks, but chopped and changed a bit to polish off the end of the song. The only lick in the outro worth mentioning specifically is this lick, where 2 powerchords are played differently than before. Finish with the intro riff played once more.