Tantric - The Past Is The Past Intro Chords & Tabs

Song: The Past is The Past
Artist: Tantric
Album: Mind Control
Tuning: Half Step Down I Think

I think it is in half step down. I don't know if it is all correct but i kind of 
have the beginning down. I'll need help figuring
the rest out.

            Intro (Acoustic) I'm not sure about this Please correct it if you can 
i would really appreciate it 
 
|---------------------------------------------------|
|---------------------------------------------------| These might be hammer 
|---------------------------------0-----------------|
|---------------------0---0-2-3-4-------------------| ons
|----------0--0-2-3-4-------------------------------|
|---0-2-3-4-----------------------------------------|

              x2 for this part
[ Tab from: https://www.guitartabs.cc/tabs/t/tantric/the_past_is_the_past_intro_tab.html ]
|--2----0----2---0----0-----0-------------------------|  he slides to some 
|--3----3----3---3----2-----3-------------------------|  other frets and
|--2----2----2---2----2-----2-------------------------|  i am not sure of 
|--0----0----0---0----0-----0-------------------------|   the tuning
|---------------------0-------------------------------|
|-----------------------------------------------------|

 Harmonic
|-----------|
|-----------|
|-----------|
|-----------|
|-----5-----|
|-----------|

|-------------------------------------|
|-------------------------------------| Weird background noise
|-------11~--9~-----------------------|
|-------------------------------------|
|-------------------------------------|
|-------------------------------------|