Here we look at the main guitar for the song. It's in Eb tuning, so if you are in standard tuning, you need to tune each string down by 1 note:

Eb Tuning - Low E : Ab : Db : Gb : Bb : Eb

Here are the song parts. You need to flip between a clean guitar sound and full distortion. The clean guitar part is for the intro and interlude:

Intro - He uses fingerpicking on an acoustic guitar. However, playing live he just switches to a clean sound on his electric guitar and uses a pick. So we show both ways in this ActionTab. The intro uses fingerpicking, and later the exact same thing is played during the interlude (so we show picking for that). Learn either or both, it's down to your preference.

Pre-Verse - This little chord sequence repeats a lot. It starts with octave chords (mute out the middle string) and then back to standard 3 string powerchords.

Verse - Just hold the octave chord for a long time (In the song, the singing starts here). After a while switch to using upstrokes and muting. Imagine using regular down / up / down / up strums here. Then, just take away (mute) all the downstrokes. You're left with the upstrokes only. That is exactly what he is doing here.

Chorus - This main guitar plays a melody here. It starts off very easy with just 3 notes (repeated twice). But then he steps on the gas and switches to faster, consistent alternate picking.

We show the whole backing guitar separately (it's much easier, with mainly just powerchord banging).

After the chorus, just repeat all the same song segments again until after the interlude. Remember - that's the same clean guitar riff as the intro, except he repeats it a few times and uses a pick, not fingerpicking (live at least).

Interlude - Part 2 - Straight after the clean guitar, switch distortion to full and play this octave chord sequence. This is the build up to the bridge...

Bridge - Now switch to all downstrokes. The trick here is to palm mute the root note all the time, but switch to open stabs for the full chords or added notes. As long as you mute the middle string properly with your finger (as shown), you should get good clean notes without interference from that middle string. Remember to lightly touch it to mute it. If you press too hard on it you'll end up playing the full note, which won't sound so good.

Outro - This is a very simple powerchord progression (played by the backing guitar too). It's short and repetitive, and you can use all downstrokes if you find it easier. It appears after the very last chorus melody.

And that's all the main guitar parts!