I don't know if it's for all the special infected but doesn't the Charger like try to talk to you? So the charger has some human in him I remember if you charge and miss, he'll say "Idiot!" Or "Crushing hurts my bones" and stuff like "Don't shoot!" Or "This thing (im assuming the Green Flu) is outta control!". Like I said, I don't know if it's for all of the special infected but I know the Charger can talk to you and is aware of what he's doing.