A lil\' bit of Starfighter help is needed

As of now there\'s only one level that I need to get a Gold on before I can unlock the bonus 2-player missions (as well as that sweet Infiltrator ship).  On the Midnight Munitions Run level (the one where you fly through the canyon at night), one of the bonus objectives is to destory all the ATTs (or whatever they\'re called).  That\'s the only objective I can\'t complete for some reason, even though I blow up everything that I see on that mission.  So, could anyone here help me out?

Well for the record its destroy all the AMT\'s not ATT\'s but thats probably a Typo


Ok the narrow canyon where the floating Turret droids hang out. After or under each turret droid is a AMT,  some are just past the Turret Droids and hiding behind a rock or cliff, hit your brakes and you\'ll find them

After this "Narrow" Canyon run is the open fiewld where you 1st meet the resitance fighters, Destroy only 4 of the AMT\'s and then all the scarabs then the final AMT do to the Scarab bug in the game. If you do not receive your 1st medal before you head down the last canyon then you missed a AMT

I just finished this one yesterday and it was my last gold too