OK, playing SB 3.028 on my own with the odd spare time hours I had. Played at night for the USA to take advantage of their NVG equipment. In the scenario, I used a dismount team to sneak up directly behind a T-90. Darn troops wouldn't fire. In the image provided, I can see it in F7 and F8 mode. I'm close enough to pee on the TC hatch if the game allowed. But no shots. The only thing I can think of that might be the problem is that the system does not give the grunts NVG equipment to shoot at night, or someone who designed the scenario failed to provide NVG options for the grunts.
So, what gives? I'm hoping 4.0 or 4.004 or 4.xxxxxxx-xxxxxxx fixed this. I'm aware that this is a tank simulator after all. But still, the grunts should be able to fire at night, been able to do that since 1989 when I was a poor sod carrying a rifle.