Yeah, apparently this game has some kind of MAJOR bug when it comes to counting for the badges. The highest counter I have for anything is 4 and the counter for disabled missiles is at 0 no matter how many I have disabled rather than destroyed.
Reminds me of the old arcade laserdisc games like Dragons Lair and Space Ace. I do wish there were subtitles for those of us who have to play without sound in some locations (libraries, offices, schools, etc....)