Pick the fastest plane you have, fly to a wheelie thing, slow down, and approach from the front so the wheelie is on your left. Switch targets until the orange target (I guess it's the wheelie's bridge) is highlighted, then fire four missles right at it. Jet off as fast as you can to the next, and repeat. Don't waste time with any of the other targets.
I've figured out by myself, that you just need to shoot the bridge of each wheelie.
I've been using the F-105, which is pretty fast. I have it armed with the air to surface missiles, which lock-on at longer range than regular missiles and seem to do more damage.
The problem is, I still can't kill all the wheelies before one of them makes it off the map, there are just too many of them. I don't know how many there are, I'm guessing at least 12 (4 groups of 3?).
Seems like some of the planes don't have afterburner. SU-25 Frogfoot and the F-8 or is it an A-7 (I always mix up the two)?
Also found that if you time the release right, the Frogfoot's FAE bombs can be quite effective against the wheelies.
Starting to get frustrated.
Graham