I own the account "Sentiecide" on Youtube. I made a cover of this song. If you want to learn this song I'd
highly reccomend watching the cover alongside this tab or it'll confuse you. There's a lot of quick sliding 
and tricky chord shapes.
I'm also including the time signature of each riff.
Riff A (7/4) (0:00)
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-9--9-9-9-9-10--10-10-10-10-9--9-9-9-9-8--10b----10b-----------------------|
C|-9--9-9-9-9-10--10-10-10-10-9--9-9-9-9-8--10b----10b-----------------------|
G|---------------------------------------------------------------------------|
D|-0--0---0---0---0-----0-----0--0---0---0--0------0-------------------------|
Repeated 3 times

Riff B (5/8) (0:11)
For this riff, once you hit the 8th fret in the base of the chord, just slide down the fretboard while 
repeatedly picking in tempo. This should make sense when you see it in the video.
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-13-12-11--10\-------------------------------------------------------------|
C|-12-11-10--9\--------------------------------------------------------------|
G|-11-10-9---8\--------------------------------------------------------------|
D|---------------------------------------------------------------------------|
Repeated 4 times
Riff C (4/4) (0:16)
D|---------------------------------------------------------------------------|
A|-4---4-5---5-6-7---7-8--9--------------------------------------------------|
F|-6---6-7---7-8-9---9-10-11-------------------------------------------------|
C|---------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
1 time
Riff A x3
Riff B x4
Riff C x1
Transition 1 (2/4) (0:37) This is used as a transition multiple times later in the song.
D|---------------------------------------------------------------------------|
A|-11--11--11----------------------------------------------------------------|
F|-9---9---9-----------------------------------------------------------------|
C|-9---9---9-----------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|-0---0---0-----------------------------------------------------------------|

Riff D.1 (9/8) (0:38)
D|---------------------------------------------------------------------------|
A|-----------------8---7---7---7---7-----------------------------------------|
F|-----------------9---8---8---8---8-----------------------------------------|
C|-2---2---2---2---10--9---9---9---9-----------------------------------------|
G|-2---2---2---2-------------------------------------------------------------|
D|-0---0---0---0---0---0---0---0---0-----------------------------------------|
Riff D.2 (1 measure of 4/4, then 1 measure of 6/4) (0:41)
D|-------0---------------4------4--------------------------------------------|
A|-4------4---6-----6----0------0-----11--11--11-----------------------------|
F|-0-------0--0------0----------------9---9---9------------------------------|
C|------------0-------0--3------3-----9---9---9------------------------------|
G|-2---2-----------------4------4--------------------------------------------|
D|------------6---6-------------------0---0---0------------------------------|
All of Riff D played 3 times

Riff E.1 (4/4) There will be a different variation of this riff tabbed out later in the song. (1:01)
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-------------------------16------------------------------------------------|
C|-7--10-10-13--9--13--13--15------------------------------------------------|
G|-7--8--8--12--8--12--12--14------------------------------------------------|
D|-5--8--8--11--7--11--11--13------------------------------------------------|
Riff F (4/4) (1:16)
D|---------------------------------------------------------------------------|
A|-14------------------------------------------------------------------------|
F|---17----------------------------------------------------------------------|
C|-----15--15-14-16-15---15--------------------------------------------------|
G|---------14-13-15-14---14--------------------------------------------------|
D|---------------------------------------------------------------------------|
Played 4 times
For the next little part, just scrape your pick on the low D string, then let it ring out accordingly.
Riff F x16
For the transition afterwards, just play a run of the mill E Minor shape.

Riff G (4 measures of 4/4) (2:14)
D|-0-----0---------0---------------------------------------------------------|
A|-0-----0---------0----------7--8--8----------------------------------------|
F|----------------------------8--9--9----------------------------------------|
C|-2-----6---------2-----2---------------------------------------------------|
G|-2-----6---------2-----2---------------------------------------------------|
D|-0-----4----3----0-----0-------------0-------------------------------------|
Played 4 times
Riff A x3
From this point on, it gets very messy.
Riff H (3:10)
Repeatedly pick while sliding back and forth. This riff is played in a couple of different odd time signatures
in certain parts. I'd just watch the video and listen to the song to get used to it.
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|------------------------------------------10b------------------------------|
C|-11\5/11\5/11\5/11\5----------------------10b------------------------------|
G|-10\4/10\4/10\4/10\4-------------------------------------------------------|
D|---------------------------------------------------------------------------|
                                   Also, in certain parts, this
                                   extra part is added at the end.
Riff I (2/4) (3:13)
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-12--13--14--15------------------------------------------------------------|
C|-11--12--13--14------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|-0---0---0---0-------------------------------------------------------------|
Riff H x1
Riff J (3:16)
This is combined with Riff H and has a different alternation at one point as well.
D|---------------------------------------------------------------------------|
A|--------------------------------------------------0-----0------------------|
F|-------------7-7-7-7-7-7-7-7--------------7-7-7-7-7-----7------------------|
C|-11\5/11\5---7-7-7-7-7-7-7-7--11\5/11\5---7-7-7-7-7-----7------------------|
G|-10\4/10\4---6-6-6-6-6-6-6-6--10\4/10\4---6-6-6-6-6-----6------------------|
D|---------------------------------------------------------------------------|
Riff H x1
Riff I x1
Riff H x1

Transition 2 (4/4) (3:27)
This is only played once in the whole song. It's just a tritone you slide around.
D|---------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-13\12\11\10/-15\13--------------------------------------------------------|
C|-12\11\10\9/--14\12--------------------------------------------------------|
G|-11\10\9\-8/--13\11--------------------------------------------------------|
D|---------------------------------------------------------------------------|
Riff J x1
Riff H x1
Riff I x1
Riff H x1
Riff J x1
Transition 1 x1
All of Riff D x3
Riff H x1
Riff I x1
Riff H x1
Riff J x1
Transition 1 x1
Riff E.2 (12/8) Variation on Riff E.1. (4:18)
D|----------------------------------0-----------------------------------------|
A|----------------------------------0-----------------------------------------|
F|-------------------------16-------2-----------------------------------------|
C|-7--10-10-13--9--13--13--15---9---2-----------------------------------------|
G|-7--8--8--12--8--12--12--14---8---0-----------------------------------------|
D|-5--8--8--11--7--11--11--13---7---------------------------------------------|

Riff K (4/4) (4:25)
D|----------0-0--------------------------------------------------------------|
A|-1--1-0--------1--1--0-1p0--0h1----3-0-1-----------------------------------|
F|-2------------------------------2------------------------------------------|
C|-2-----2-------------------------------------------------------------------|
G|-0-------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
Played 3 times
Transition 3 (4:50)
D|---------------------------------------------------------------------------|
A|-12-12-12-12-12-13-13-13---------------------------------------------------|
F|---------------------------------------------------------------------------|
C|-10-10-10-10-10-10-10-10---------------------------------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
Riff L (Some measures of 4/4) (4:53)
D|---------------------------------------------------------------------------|
A|-13-13-13-13-12-12-12-12-13-13-13-13-12-12-12-12---------------------------|
F|---------------------------------------------------------------------------|
C|-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10---------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|-13-13-13-13-12-12-12-12-13-13-13-13-12-12-12-12---------------------------|
F|-0--0--0--0--0--0--0--0--11-11-11-11-11-11-11-11---------------------------|
C|-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10---------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|-13-13-13-13-12-12-12-12-13-13-13-13-12-12-12-12---------------------------|
F|-0--0--0--0--0--0--0--0----------------------------------------------------|
C|-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10---------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
A|-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12---------------------------|
F|-8--8--8--8--8--8--8--8--8--8--8--8--8--8--8--8----------------------------|
C|-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10---------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|
Played once
Riff K x3
Transition 3 x1
Riff L x4
Very last chord: (6:49)
D|-9-------------------------------------------------------------------------|
A|---------------------------------------------------------------------------|
F|-8-------------------------------------------------------------------------|
C|-10------------------------------------------------------------------------|
G|---------------------------------------------------------------------------|
D|---------------------------------------------------------------------------|

************************************
| b  Bend
| \  Slide down
| /  Slide up
| h  Hammer-on
| p  Pull-off
************************************