I had some of these as a kid. I had two of the assault buggies and the TacCom truck. I think I actually have one of the buggies around still. I'll have to see if I can remember which trinket box I stashed it in.
LISTEN! Do you smell something?

Here you can see the toys made for the movie:
http://www.megaforcehq.com/megatoys.html

I know that Matchbox made a line of miniature vehicles, one of which I had, and that there was a Mattel Vertiberd with the Megaforce themethere may have been more but that's what I remember.