the chords for this song are C, Am, Em and G

Intro:C C, Am Am, Em Em.......C C, Am Am(ohohoooo).....C C, Am Am, Em Em

 |-----------------------------------------------|
 |-----1----1------1----1-----1---1------0---3---|
 |------0----2-----------2-----0---2----------0--|
 |---2-----2------2----2-----2----2-----2--------|
 |--3-----0------3----0-----3----0-----2----2----|
 |-----------------------------------------3-----|


^Play that riff until he says "iron gates"

then play the same riff except pick the first two strings and strum the rest for each chord

example:
|---0--|
|---1--|
|---0--|
|--2---|
|-3----|
|------|

Then when he says "some are blessed and some are cursed" at 1:06
strum the chords

then just repeat everything again.... you will figure it out