Currently, civilians are allowed to be shot if they are in a car or on a grappling hook because in these situations they are considered to be a 'vehicle'. I was wondering, though, if it would not be possible to perform a check to see if the user of the vehicle is a civilian. I do not mind civilians in cars being allowed to be shot but it would be nice if shooting them on the grappling hook was penalized.
I ask if this is possible since it is apparently possible to check whether the user of one of the gunner positions in a vehicle is civilian - if they are, they are killed almost instantly. It would be nice and very funny (and frustrating for the British!

) if civilians could escape using grappling hooks. Perhaps it could even be made so that if an enemy was on your grappling hook you could not pick it up and make them fall down.
Also, performing this check could eliminate a very serious exploit: Civilians could then no longer evade capture by throwing a grappling hook right in front of them and be considered a 'vehicle'. I trust you will not abuse this in the game now if you did not know about it already.