That would break the gameplay, since there's many missions where your not suppose to be able to be in the air. Also, the only way for us to make an AI exit a boardable vehicle now is to either kill or flip them, the exit animations had to be removed.

Quote Originally Posted by jcap got l4d from Rossmum :D View Post
Oh, so you can bail out at any time?
It's just a seat, not that different from a hog passenger seat.