the suggestion about buffing the satchel against tank is really more about finding the justification to increase the penal's price. The penal is just so incredibly effective against infantry, but it's also the only thing they can do.
Exactly.
The only squad that is similar to mod penals are Pfussies, but they already get more tools(further sight, better scaling-dat vet5 permasprint, more utility with nades, at nades and flares).
Penals with flamer will perform pretty much exactly like pfussies with G43, that goes for AI effectiveness and scaling.
Penals will be better vs garrisons and heavy cover, pfussies will be better vs light cover and open shoot-outs(+ their whole utility bag vs satchels).
For these reasons, I don't believe penals will be much of a problem, certainly not bigger problem then pfussies.
Vs penals 222 will be so good that it isn't even funny and even kubel does great here. Penals also don't excel vs suppression.
They'll be strong AI specialist squad, but they are still reliant on other units to cover for their easily exploitable weaknesses. I've played quite a lot on the preview mod already, penals are strong, but light armor and suppression shuts them down easily, going for penals will also mean you'll have more squads then soviet player.