Man I agree with =Robin-Hood=, do a search or just listen to what he has posted. He is from the site he knows what he is talking about. If you get any kill that is a result from an exploding car, tank, apc, or whatever it is a road kill. Yes you can get kills with a mobile AA or a stinger site. A few things that I have done to get a roadkill.
1. Shot a tow at an apc (tows are a one shot kill as they will put the apc on fire or hit in the right spot insta kill) all five hop out, and they all go flying in the explosion. Result 5 Road kills with the TOW (Ground Defense)
2. Stinger at the MEC trash can heli (mec transport chopper), got it to burn they all jump (pilot + 2 gunners) explodes kills a gunner and pilot. Result 2 Road kills from AA.
3. Flying a J-10 so low along the deck of the carrier running down 8 people waiting for the blackhawk to come back. Result 8 Road kills with the plane.
4. Going carmaggedon with any all vechicles. Result Road kill with what ever vechicle type it is.
There are more but can't remeber them all.
1. Shot a tow at an apc (tows are a one shot kill as they will put the apc on fire or hit in the right spot insta kill) all five hop out, and they all go flying in the explosion. Result 5 Road kills with the TOW (Ground Defense)
2. Stinger at the MEC trash can heli (mec transport chopper), got it to burn they all jump (pilot + 2 gunners) explodes kills a gunner and pilot. Result 2 Road kills from AA.
3. Flying a J-10 so low along the deck of the carrier running down 8 people waiting for the blackhawk to come back. Result 8 Road kills with the plane.
4. Going carmaggedon with any all vechicles. Result Road kill with what ever vechicle type it is.
There are more but can't remeber them all.