Staind-Outside
-You can see what chords he uses in the video,
  and strumming pattern is easy to figure out,
 im sure this is correct-
-Standard Tuning-drop 1/2 step Eb

(Strumming Pattern is the same in Chorus and Verse)
-Intro/Verse-(play the Gb chord straight sometimes, dont always hammer)
E---7-----5-----3------5-------------------------------------------
B---7-----5-----3------5-------------------------------------------
G---9-----7-----3------5-------------------------------------------
D---9-----7-----3h5----7-------------------------------------------
A---7-----5-----3h5----7-------------------------------------------
E---0-----0-----3------5-------------------------------------------
               

-Chorus-
E---0----3----2----0------------------------------------------------
B---0----3----3----2------------------------------------------------
G---1----0----2----2------------------------------------------------
D---2----0----0----2------------------------------------------------
A---2----2---------0------------------------------------------------
E---0----3----------------------------------------------------------