Those vismods are useless.Excellent, walking (or rather rolling) war crime.
Disguising military equipment as civilian is not specifically listed as a war crime (because western special forces likes to use civilian vehicles for covert ops), but it would be pretty hard to argue against it being a war crime since doing so proactively endangers actual civilians by making it harder for opposing forces from positively distinguishing between military and civilian targets.
I don't think they can function as IFV while in the vismod configuration, at least the turret is hampered.
Also, even with the vismods, they can operate in tactical formations, such as platoon wedge or stagger column. In order to blend in, these vehicles has to be dispersed and hidden. which more or less negates their combat effectiveness as part of a formation or unified command.
I also remember seeing them disguising a CM12 in a trash heap. Absolved of its mobility and much of its sensor, a tank is barely a functional pillbox, with very limited tactical impact in the C4ISR dominated modern mobile urban warfare.
This is the kind of shit you push around to full the ignorant masses. The energy and material it took to make that vismod can be better use in training. It says a lot about ROCA military leadership at the BN and below level if they go through with this nonsense, which is essentially a publicity stunt for the masses and froggy politicians.