To play it just as it sounds on the album, you need to tune the guitar on 
GC FBb DG

Cadd2/B            EmWho's (022000@1)in a bunker? Who's in a bunker?
Gm/Eb              CWomen (x32010@1)and children first and the children first and the children
Cadd2/B           EmI (022000@1)laugh until my head comes off
Gm/Eb            CI (x32010@1)swallow till I burst  until I burst until I
Cadd2/B            EmWho's (022000@1)in a bunker, who's in a bunker
Gm/Eb           CI (x32010@1)have seen too much I haven't seen enough you haven't seen it
   Cadd2/B       EmI (022000@1)laugh until my head comes off
Gm/Eb              CWomen (x32010@1)and children first and children first and children

Chorus:
Cadd2/B        Em (022000@1) Gm/Eb                 CHere (x32010@1)I'm allowed... everything all of the time
Cadd2/B        Em (022000@1) Gm/Eb                 CHere (x32010@1)I'm allowed... everything all of the time

The rest of the song is repeating the sequence