Dropkick Murphys - Im Shipping Up To Boston Chords & Tabs

I tried don't know if its right but i like it..
[ Tab from: https://www.guitartabs.cc/tabs/d/dropkick_murphys/im_shipping_up_to_boston_tab_ver_4.html ]
 this is the main riff not the begining but what the dif?
guitar 1
e-------------------------------------------------------------|
b-------------------------------------------------------------|
g--4--2-4--4-6-7-6-4-2-----4-2-4--4-6-7/9---------------------| repeat that but
d-------------------------------------------------------------|   after the fist
a-------------------------------------------------------------|     little thing
e-------------------------------------------------------------|   do this
repeat------------------   don't repeat-----------------------|
fill
e----------------------|
b----------------------|
g-9-7-6-7-6-4-6-4-2-4--|
d----------------------|
a----------------------|
e----------------------| thats pretty much it for the main riff

guitar 2

e-----
b-----
g-4--4
d-4--4
a-2--2 just do that while the guitar plays 4--2-4
e-----