Make them also over 40 fuel and make sure they won't appear before 2CP too, right?
Again, price literally means nothing. You can pay any price as long as you save up for it. The objectively unbalanced aspect of 222s is that they take damage from bullets. Less now, but they still get demolished by machine guns.
Meanwhile, Allied light armor gets to literally drive into your base, stand there and murder every single unit you have, and there is absolutely nothing you can do until you can bring out some kind of AT weapon. That is a HUGE THREAT to Axis players that Allied players absolutely never experience.
I assume you aren't aware of existence of FHT?
The OKW Flak Half-track? Yes, it's armored. It's part of the "EVERY other armored car in the entire game" that I mentioned. Which is why all 221s/222s taking bullet damage while being "armored cars" makes absolutely no sense.
What is so hard to understand about this whole scenario?
Being able to bring out vehicles that are COMPLETELY IMMUNE to bullet damage at a time in the match when literally not a single unit has any anti-tank damage capability on the field is an
enormous, cataclysmic threat. It allows a single armored car or light tank to completely wipe the entire map clean of every single enemy infantry squad and lets the player take every single control point while the opponent sits in base waiting for an AT weapon.
And even when said AT weapon arrives, you can only barely claw back a single victory and fuel point with it, since bullet-immune armored cars and light tanks are fast and can patrol the entire map in no time at all, denying enemy infantry access to literally every other area not covered by an AT weapon while constantly devouring enemy munitions and being repaired over and over, then rinsing and repeating.
Do people just not understand the dynamics of the game? OKW has Raketenwerfers that can't be built early because you have to build enough infantry to hold ground, and Ostheer has absolutely no AT early. Meanwhile, every single Allied faction has handheld AT that allows all infantry units to be universal anti-infantry and anti-tank powerhouses that are never threatened by anything.
Making 221s/222s actually armored would be a tiny step in the direction of fixing this blatant imbalance.