What's the best way to level transport helicopters as a pilot?

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.

You can hover around or land next to a flag to cap it for points.

The scout helicopters are the AH-6J LITTLE BIRD and Z-11W. Which have pretty awesome infantry killing mini guns. Which should give you points to level up. Once you get the heat seekers you are a killing machine.