Parkway Drive - Alone Intro Chords & Tabs

so i have this tuning set to standard but it might be set to something else. i was 
only trying to figure out the intro since it sounds pretty sick and it is played in
most of the song. 

this was done by ear and is my first tab im posting. it might sound similar but not 
100% correct. if there are any corrections to be made, let me know so i know how to
play it right as well =] - dino-yoshi
[ Tab from: https://www.guitartabs.cc/tabs/p/parkway_drive/alone_intro_tab.html ]
|--------------------------------|---------5-----------------------|
|1-1-4-1---3---3-----3---3h4p3-3-|-----3-----3---3-----1---3-1-----|
|--------5---5---3-3---3---h5p3--|-3-3---3-----3---0-0---0-----0---|
|--------------------------------|---------------------------------|
|--------------------------------|---------------------------------|
|--------------------------------|---------------------------------|
                                 
                                 ^
                          very short pause

h= hammer-on
p= pull-off