The intro is all guitar

Verse           
 G|-------------------|
 D|-------------------|
 A|--0*-3*-----0*-3*--|
 E|3*-----3*-3*-----3*|

Chorus
 G|-----------------------------|  |-------------------------|
 D|-----------------------------|  |-------------------------|
 A|-------0-0-0-0-3-3-3-3-------|4x|------5-3-0--------------|
 E|3-3-3-3---------------3-3-3-3|  |3-3-3-------3-3-3-0-3-0-3|

Verse 3
 G|---------------|
 D|---------------|
 A|--0-3-----0-3--|
 E|3-----3-3-----3|

Chorus 3
 G|---------------|  |-------------------------|
 D|---------------|  |-------------------------|
 A|----0-0-7-7-5-5|4x|------5-3-0--------------|
 E|3-3------------|  |3-3-3-------3-3-3-0-3-0-3|

I know this isn't the average Rancid bass part but the bassist is singing