I recommend you listen to song first before you actually attempt to learn because of different rythems etc.

(Intro)
D1x4 E1,E1x4 D1 repeat 4 times then...
(verse 1)
D1 E1 repeat but pause in between
(bridge)
D1 E1 G1 F#1 F1 E1 D1
(verse 2)
C1 C1 C1 C1 D#1 C1 C1 C1 C1 G1 x3 then play C1 C1 C1 C1 C3 D3 C1 C1 C1 C1 D#1
repeat bridge again then
(Solo A)
A#2 B2 B2 A#2 A#2 G2 F2 G2 F2 F2 F2 G2 F2 G2 A#2 G2 A#2 B2 B2 A#2 A#2 B2

Special thanks:Guerilla
This is my version of War Pigs, Guerilla also has his own version