Delirium - Darkness Follows Chords & Tabs

Ok, this is a song is written by me.
I am the lead guitarist of Delirium, Nicholas Bryant.
I made this song using the first three chords I ever learnt, but I changed some of it a 
So just go with it. It's a acoustic/rock song, but it can be played on th acoustic 
on an amp.

Ok the first thing you need to know is that I use moderate strumming.
Example alot of Up and Down strokes.

R1M Rest 1 Measure, the rest varies with number.
Up stroke U
Down Stroke D
The song is in 4/4.
[ Tab from: https://www.guitartabs.cc/tabs/d/delirium/darkness_follows_tab.html ]
Intro
    Em           Em
    D  D       D DU D     D  D    D  UD D
E|--0--0----|----0-00-0-|-------|---------|
A|--0--0----|----0-00-0-|-------|---------|
D|--0--0----|----0-00-0-|-------|---------|
G|--2--2----|----2-22-2-|-0--0--|-0--00-0-|
B|--2--2----|----2-22-2-|-2--2--|-2--22-2-|
E|--0--0----|----0-00-0-|-0--0--|-0--00-0-|
   D  D          D DD U  UD
E|----------|-----------|-------|---------|
A|----------|-----------|-------|---------|
D|----------|-----------|-------|---------|
G|-2--2-----|----2-22-2-|02-----|---R1M---|
B|-0--0-----|----0-00-0-|00-----|---------|
E|-0--0-----|----0-00-0-|00-----|---------|

Main Riff
   Em         Am            Em        Am
   D D U D    D D U U     U D D D    D D D U
E|-0-0-0-0--|-0-0-0-0---|-0-0-0-0--|-0-0-0-0---|-1-1-1-1--|
A|-0-0-0-0--|-1-1-1-1---|-0-0-0-0--|-1-1-1-1---|-3-3-3-3--|
D|-0-0-0-0--|-2-2-2-2---|-0-0-0-0--|-2-2-2-2---|-2-2-2-2--|
G|-2-2-2-2--|-2-2-2-2---|-2-2-2-2--|-2-2-2-2---|-0-0-0-0--|
B|-2-2-2-2--|-0-0-0-0---|-2-2-2-2--|-0-0-0-0---|----------|
E|-0-0-0-0--|-0-0-0-0---|-0-0-0-0--|-0-0-0-0---|----------|

The song continues with the Main Riff repeating, and it ends with the Intro being played 
but the second time around, with the last two measures play it slower.