Part 2 of the song is the interlude. This is where things go gentle for a while. Quite a lot happens during the interlude with different guitar layers. Here's the overall picture...

A clean guitar plays throughout the interlude. That is what we look at in this ActionTab.

While this clean guitar plays, James and Kirk each play a melody (forming a harmony together) on separate guitars:

James Melody

Kirk Melody

There is a break between these melodies where there is a solo played on yet another guitar:

Solo

Then the interlude ends, the tempo picks up and it's back to metal riffery for the last part of the song.

Now, let's look at the lovely clean guitar that runs throughout the interlude. The good news is that it is actually not a very big part. It's the same chord progression constantly repeated. Once you learn the first part of this ActionTab, just keep repeating it.

The chords are picked, and quite fast too. You may prefer to fingerpick this part of the song instead of using a pick. Metallica use a pick, so we're showing it as they play it...

E minor - D sus2 (with flourishes) - C add9 - little A - B7 progression - Repeat.

Work at this progression one chord at a time. Go as slow as you need with the chord you are working on. The important thing is to get it right. Only then work at building the speed and move on to the next chord.