this is my first tab so be nice.
Tuning: Standard
Main Riff (speed picking)
i honestly cant say how many picks, i keep losing count, but these are the notes. 
just listen to the record.
(A)
|--------------------------------------------------------|
|--------------------------------------------------------|
|---1"----------4"----1"---------------------------------|
|----------4"----------------------2"----4"--------------| (x 2)
|---------------------------4"---------------------------|
|--------------------------------------------------------|
(B)
for the next bit hammer on.  
|--------------------------------------------------------|
|--------------------------------------------------------|
|---4h6---(x12)----6~-4----------------------------------| x2
|------------------------6--4~---------------------------|
|--------------------------------------------------------|
|--------------------------------------------------------|
(C)
|--------------------------------------------------------|
|--------------------------------------------------------|
|--4h6-6"------4h6-6"-------4h6-6"----4"-----------------| x2
|--------------------------------------------------------|
|--------------------------------------------------------|
|--------------------------------------------------------|

Back to Main Riff (A), repeat all of above
then
|--------------------------------------------------------|
|----------7-------5~--5~-----------7-------5~---4~------|
|--6--6-6-----6-------------6--6-6-----6-----------------| x 2
|--------------------------------------------------------|
|--------------------------------------------------------|
|--------------------------------------------------------|

|--------------------------------------------------------|
|--------7-----5"-------------7-------5"----4"-----------|
|-6-6-6----6---------6-6-6------6------------------------| x 2
|--------------------------------------------------------|
|--------------------------------------------------------|
|--------------------------------------------------------|

|--------------------------------------------------------|
|---------7-------5"-------------7--------5"----4"-------|
|-6"----------6-------------6"--------6------------------| x 2
|--------------------------------------------------------|
|--------------------------------------------------------|
|--------------------------------------------------------|

back to main riff (A)

finish with:
|-------|
|-------|
|-------|
|---6---|
|---4---|
|-------|

Key:
~  vibrato
"  speed pick