Folks, if you start off a mission and have the AI MG fire at a gamelogic, it will work, at least for .5 seconds. Anytime into the game, however, and you won't even get that.
If anyone knows how to have an MG fire short controlled bursts in a general direction (suppressing fire), please speak up.
Guesses are good for most answers, but in this case, guesses won't help us.