Ill guess ill try it out once i get bf3 working....
First Get a friend in a car and make him drive next to the ladder after you've climbed on the ladder.
Then if it shows Press B (For XBOX) and O (For PS3) Then get on and make you friend get of and switch to the front seat and drive.
And for the points Headshot a guy or just kill him I think then you get 495 points or something.
You might be invisible when you drive and you will be seen on the ladder.
Its for trolling too. bobo
Ill guess ill try it out once i get bf3 working....