This is simple to play, plucking is consistent throughout with occasional hammer-ons.  
Just play the bass string of each chord and the two higher strings alternately. I got this  
from watching James performing it live. 

 
Capo on 2nd 

C (can add the occasional hammer on to most of these chords) 
I don't want my children to grow up like me 
                                          F 
It's just so destroying, it's a mocking disease 
            C 
A wasting disease 

C 
Some days I wake up with love still alive 
                                           F 
I try to go to sleep, but I cannot close my eyes 
                  C 
I cannot close my eyes 

Am 
I can't fight this war any more 
                         Em 
Time to surrender, time to move on 
Am 
So line up the firing squads, kiss goodbye to what you want 
Go with the flow, go home 
                                    Em 
You can keep on struggling when you're alone 
            G 
When you're alone 

F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   C 
Has won the battle easily 
F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   Am 
Has won the battle easily 
           G 
The battle easily 

C 

C 
The act of creation saves us from despair 
                                    F 
A phrase that keeps repeating in my head 
      C 
In my head 


C 
It's not enough to succeed others must fail 
                                 F 
My unhappy mantra I wish I could escape 
                C 
I wish I could escape 

Am 
I can't fight this war any more 
                          Em 
Time to surrender, time to move on 
Am 
So line up the firing squads, kiss goodbye to what you want 
Go with the flow, go home 
                                      Em 
You can keep on struggling when you're alone 
            G 
When you're alone 

F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   C 
Has won the battle easily 
F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   Am 
Has won the battle easily 
F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   Am 
Has won the battle easily 
F 
This sullen Welsh heart 
It won't leave, it won't give up 
The hating half of me 
                   Am 
Has won the battle easily 
            G 
The battle easily 

Repeat G until end.