Meshuggah - Stengah Chords & Tabs

this is the first song on "nothing"
tuning is an eight string guitar down 1/2 step
    (F*-Bb-Eb-Ab-Db-Gb-Bb-Eb)
       
   *i think it's f but not sure

intro
Bb|---3-333----3-333----|
 F|--11-111-0/11-111-0/-|

all i have is the intro but no one else has ANY meshuggah tabs so you can't say i didn't try.
[ Tab from: https://www.guitartabs.cc/tabs/m/meshuggah/stengah_tab.html ]