I think it's just barre chords or power chords and the G chord during the verse
has some open E notes on the low E string like 0 3 0 3 0
F Bb G x4
FBbG
Walker sees the mist rise
FBbG
Over no man's land
FBbG
He sees in front of him
FBbG
A smashed up waste ground
CBb
There are no fields or trees
BbF
No blades of grass
FBbG
Just unhurried ghosts are there
FBbG
Hanging in the wire
F Bb G x2
FBbG
Walker's in the wire
FBbG
Limbs point upwards
FBbG
There are no birds singing
FBbG
The white cliffs of Dover
CBb
There are no trees to sing from
BbF
Walker cannot hear the wind
FBbG
Far off symphony
FBbG
To hear the guns beginning
CBF
F Bb G x4
DmF
Walker's in the mist
BbF
Rising
DmFBbDm
over no man's land
DmFBbF
In the battered waste ground
DmFBbF
Hear the guns firing
Bb F x4