Rattlesnake

Opening riff (played on synth bass) repeat through whole song
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|-6-8---8-66-8---88-6-------------------------------------------------------|
A|---------------------------------------------------------------------------|
E|-----6--------6------------------------------------------------------------|

First riff ("Whoah oh oh oh...")

e|-6-6-6-6-4-3---------------------------------------------------------------|
B|-6-6-6-6-4-3-3--3----------------------------------------------------------|
G|-------------3--3----------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
E|---------------------------------------------------------------------------|

Second riff ("sweating, sweating...")
Guitar 1:
e|---------------------------------------------------------------------------|
B|-5h6---5h6---5h6----9-8-6--------------------------------------------------|
G|-----7-----7-----7--------8-7----------------------------------------------|
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
E|---------------------------------------------------------------------------|

Guitar 2:
e|-3h4---3h4---3h4----6-4----------------------------------------------------|
B|-----6-----6-----6---------------------------------------------------------|
G|--------------------------5------------------------------------------------|
D|------------------------6---6----------------------------------------------|
A|---------------------------------------------------------------------------|
E|---------------------------------------------------------------------------|

For the instrumental interlude after the chorus, repeat the second half of the riff.

There is also a simple rhythm part repeated through the chorus and instrumental:
e|-6-6--6-6------------------------------------------------------------------|
B|-6-6--6-6------------------------------------------------------------------|
G|-5-5--5-5------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
E|---------------------------------------------------------------------------|

And so on until the solo.

On the album it's all played sliding, using one finger, on one string:
Figure 1 (x2)
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|-1/13-13-13-13-11-8\5--11-11-11-10-8-5-5/6\5-3\1---------------------------|
E|---------------------------------------------------------------------------|

Figure 2:
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|-15-13-15b17-/8\-/15-/20-17------------------------------------------------|
E|---------------------------------------------------------------------------|

The rest of the solo is just repeating those sections.

You can also play it this way, which is easier:

Figure 1 (x2):
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|----8-8-8-8-6-----6-6-6-5--------------------------------------------------|
A|-1/-----------8-5---------8-5-5/6\5-3-1------------------------------------|
E|---------------------------------------------------------------------------|

Figure 2:
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|-10-8-10b12-----/10-12/15-12-----------------------------------------------|
A|------------/8\------------------------------------------------------------|
E|---------------------------------------------------------------------------|

 

| /   slide up
| \   slide down
| h   hammer-on
| p   pull-off
| ~   vibrato
| +   harmonic
| x   Mute note
| b   Bend
| pb  Pre-bend
| br  Bend release
| pbr Pre-bend release
| brb Bend release bend