Heres the intro... 7 strings tuned to A# (i.e. a half step down) the chug part is just
on that top A# so really no point in knowing the pattern in a normal tab like this, you
go and grab the gp file i have for that if you want it OR ACTUALLY JUST LISTEN TO THE 
AND CHUG TO IT, but a lot of people have been bugging for this intro as a normal tab
of my gp file so here:

legend is at the bottom for reference


Intro
      E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)    Q    E (022100@1)E (022100@1)E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)E (022100@1)ED#||--------------------||-------8--------7--|--5----0--------1--| (022100@1)A#||-----5--6--L-----4--||--5-------5--------|-------------------|
F#||--------------------||-------------5-----|----------2--------|
C#||--------------------||-------------------|-------------------|
G#||--------------------||--0----------------|-------3-----0-----|
D#||--------------0-----||-------------------|--0----------------|
A#||--------------------||-------------------|-------------------|


  Q    E (022100@1)E (022100@1)E (022100@1)E (022100@1)   E (022100@1)E (022100@1)Q    E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)E (022100@1)E--0----------------|-----0-------------|--0----7--------5--|--4-------------0--| (022100@1)----------3--------|--------6----L-----|-------0-----0--6--|--5----0-----------|
-------------4-----|----------------8--|-------7--7--------|----------2--1-----|
-------2--------3--|-------------------|-------6-----------|-------------------|
-------------------|-------------------|-------------------|-------------------|
--4----------------|--0----------------|--7----------------|--0----------------|
-------------------|-------------------|-------------------|-------------------|


  E (022100@1)E (022100@1) E (022100@1)E (022100@1)E (022100@1)E (022100@1)   E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)E (022100@1)E---------------------|-----0--1-----------|-------8--------7--| (022100@1)--3------------1-----|-----------------4--|--5-------5--------|
------------------1--|--2--------3--4-----|--5----------5-----|
-----1h--2--3--4-----|--------------------|-------------------|
--0------------------|--------------------|--0----------------|
---------------------|--------------------|-------------------|
---------------------|--------------------|-------------------|


  E (022100@1) E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)   E (022100@1)E (022100@1) E (022100@1)E (022100@1)E (022100@1) E (022100@1)   E (022100@1)E (022100@1)E (022100@1) E (022100@1)E (022100@1)E--6------5--------3--|--3------------1------|-----1------------1--| (022100@1)--3------2-----------|---------------0h--2--|--3-----3p--0--3-----|
--3------2-----2--3--|--3--1h--2--3---------|--------2------------|
------------2--------|--0-------------------|--------3------------|
---------0-----------|----------------------|---------------------|
--3h--4--------------|----------------------|---------------------|
---------------------|----------------------|---------------------|


  E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)E (022100@1)E (022100@1)   Q    E (022100@1)E (022100@1)Q
--0--------------0--|-------------------|------------------|
--------1-----------|--3-------1-----0--|------------------|
-----------2--------|--1----------------|--2----L----------|
-----2--------2-----|--3----2-----0-----|--2----L--2-------|
--------------------|--2----------------|--3----L-----3----|
--0-----------------|--0----------------|--5----L----------|
--------------------|-------------------|------------------|


  Q    E (022100@1)E (022100@1)E (022100@1)E (022100@1)     H.              H.
-------0--1---------||---------------|---------------|
----------------4---||---------------|---------------|
--------------------||--2------------|--L------------|
--------------------||--2------------|--L------------|
--------------------||--3------------|--L------------|
--0----------0------||--5------------|--L------------|
--------------------||---------------|---------------|


Duration Legend
---------------
W - whole
H - half
Q - quarter
E - 8th
S - 16th
T - 32nd
X - 64th
. - note dotted
|-n-|  - n-tuplets


Tablature Legend
----------------
L - tied note
x - dead note
g - grace note
(n) - ghost note
> - accentuded note
NH - natural harmonic
AH - artificial harmonic
TH - tapped harmonic
SH - semi harmonic
PH - pitch harmonic
h - hammer on
p - pull off
b - bend
br - bendRelease
pb - preBend
pbr - preBendRelease
brb - bendReleaseBend
\n/ - tremolo bar dip
\n - tremolo bar dive
-/n - tremolo bar Release up
/n\ - tremolo bar inverted dip
/n - tremolo bar return
-\n - tremolo bar Release down
S - shift slide
s - legato slide
/ -  slide into from below or out of upwards
\ -  slide into from above or out of downwards
~ - vibrato
W - wide vibrato
tr - trill
TP - tremolo picking
T - tapping
S - slap
P - pop
< - fade in
^ - brush up
v - brush down