Ok, here's the situation:
The mortar launcher is a 'West' unit, so for the Soviets to use it, I spawn it as an empty unit and order two soldiers to get in (commander, gunner [there is no driver]).
I tried setting the guys to stealth, nothing. For all I know, the light (like the M2) is automaticaly switched on when a soldier is manning the vehicle and the time hits hour 'X'.
I could set it so that when the base alarm is triggered the guys board, but it still shouldnt have a light on it, it's just a generic mortar like you see in the 'Nam movies where you'd drop in the mortar and 'whomp'! Besides, if the alarm goes if, it means that the M2 gunners can see you and they'll keep shooting at you until you die. If you take out the M2 gunners first, then the alarm is nullified and that'd leave the Mortar sitting there in the dark (so the player cant see it) empty.
Any help would still be appreciated.