tuning is everything dropped a half step and then bottom string tuned down another whole step:
Eb
Bb
Gb
Db
Ab
Db

Part 1:
Db--0----------------0-----------x-x-x-x-
Ab--0---5/8--4---6-3-0-----------x-x-x-x-
Db--0----------------0-----------x-x-x-x-

Part 2:
Db--0-xxx-0-xxx-0---0-xxx-0-xxxx6-8-0-xxx-0-xxx-0---0-xxx-0-x3x5x6x8-
Ab--0-xxx-0-xxx-0---0-xxx-0-xxxx6-8-0-xxx-0-xxx-0---0-xxx-0-x3x5x6x8-
Db--0-xxx-0-xxx-0---0-xxx-0-xxxx6-8-0-xxx-0-xxx-0---0-xxx-0-x3x5x6x8-

Part 3:
Db--0-xxxx-x-x-x-x1-0-xxxx-x-x-x-x3-
Ab--0-xxxx-x-x-x-x1-0-xxxx-x-x-x-x3-
Db--0-xxxx-x-x-x-x1-0-xxxx-x-x-x-x3-

Part 4:
Db--0--0-2/3--0--0-1/2--0--0-2/3--0-2-3-5-
Ab--0--0-2/3--0--0-1/2--0--0-2/3--0-2-3-5-
Db--0--0-2/3--0--0-1/2--0--0-2/3--0-2-3-5-

Part 5:
Db-----4-3----5---------4-3---5---------4-3---5---------4-3----5----
Ab----5-----4---3-----5-----4---------5-----4---3-----5-----4---2---
Db--0---------------0-----------5---0---------------0---------------

Part 6:
use palm muting for this part
Db--0-0-1-1-0-0-----0-0-1-1-0-0-----0-0-1-1-0-0-----0-0-1-1-0-----
Ab--0-0-1-1-0-0-3---0-0-1-1-0-0-----0-0-1-1-0-0-3---0-0-1-1-0---2-
Db--0-0-1-1-0-0-----0-0-1-1-0-0-5---0-0-1-1-0-0-----0-0-1-1-0-----

last time do this:
Db--0-0-1-1-0-5-----
Ab--0-0-1-1-0---2---
Db--0-0-1-1-0-------

Part 7:
i dont know much of the solo-ish part, but heres what i got:
Bb-------------------------------------------------------------------
Gb--/10--------------10-9-10-9----9--9-10-12-10-9-10-12-10-9-10-7----
Db------------------------------------------------------------------
sorry but i dont got enough time to write the order of the different parts but you can figure it out yourself
peace out jah warriors