I’d think you’d have a better shot going to ‘The Academy - Players helping Players’ category, rather than game discussion.
As for what I can say about it-
I think it plays a lot like the BMP-2M, but having access to Tow 2Bs. Tow 2Bs are quite garbage, you’re right, but I believe they’re better than Tow 2As, as they seem to be unreliable after the responsiveness nerf to ATGMs. The Tow 2Bs are more responsive than them at the moment.
Aiming the Tow 2Bs closer to the tank’s roof often results in better outcomes (sometimes even overpressures).
You kinda have to flank, but don’t flank too close to the point where you can be heard.
This works better in longer-range maps, but longer-range maps also reduces your effectiveness and reaction time (since APFSDS travels faster than ATGMs, and the nailgun the Dardo has works much worse at longer ranges).
Medium range is usually best, but that too can be quite difficult to manage in close-range maps.
I think it’s best not to use those types of light tanks on those types of maps, but if you have to, using your teammates as bait can help, and flanking from two blocks away rather than just one.