I want to level transport helicopters in Battlefield 3. What's the best way to earn points? Do I only get points for kills from my passengers or is there something else I can do?
As a pilot in a transport helicopter, the best way to get points is to cap flags. I would guess you could also use the helicopter to run over infantry (untested, but seems likely). Spotting targets will also get you some points and make your teammates happy.
There are no unlocks for the transport helicopters though, so you won't get much (if anything) for your efforts.