Use a tremello/vibrato effect on the clean guitar. 

Intro : 

E|-1---1---0---0---|-----------------|
B|---3---3---3---3-|---2-3-2---2-3-2-|
G|-----------------|-4-------2-------|
D|-0---0---0---0---|-----------------|
(The open D's are optional)

"Chorus" (Bass plays this)

A|-2-2-2-2-4-4-4-4-5-5-5-5-5-5-5-5|
E|--------------------------------|

"Chorus" (Guitar part in the background - after the bass riff plays twice)

E|---------|---------|---------|---------|
B|---2---3-|-3---3-2-|---2-2-3-|-3---3-2-|
G|-4---4---|---4-----|-4-------|---4-----|


Guitar #2 (This is played loudly over the intro riff the 2nd time)

E|-1---1--0-| - let the 0 ring
B|---3------| 
G|----------|

You can hear this during the second "before the bullet..." part.
(VERY crunchy/heavy distortion)

B|---------------------------------|
G|-4-4-4-4-6-6-6-6-7-7-7-7-7-7-7-7-| (all palm muted)
D|-4-4-4-4-6-6-6-6-7-7-7-7-7-7-7-7-|
A|-2-2-2-2-4-4-4-4-5-5-5-5-5-5-5-5-|
E|---------------------------------|

Ending :

D|->-
A|->-      <- just slide your hand on the strings
E|->-