Kaffarov mission

Getting an error on Kaffarov mission - Gain entry to Kaffarov's compound * Infiltrate Kaffarov's villa when you are in the car and you shoot the guy who has the bio scanner he won't even load by the way, but you shoot him anyways he's invisible, but when you get out of the car after that everything just disappears so I can't move on to next mission which sucks any ideas or anyone know if this is going to be fixed.