unless the 221 arrive in the first minute it's impractical as the counter to the light truck.
For that matter you can simply build a halftrack and it would serve the same purpose.
the 222 is just not practical as the wehr's answer to allied light vehicle. It's too late for the trucks and too weak for the light tank.
That's ultimately the source of the armored care's problem. The people buy it to counter the allied vehicle. For a while it was actually kind of cost-effective for that purpose, but then the mg42 fix raised its price so now it's impractical again.
You build 1st 222 to counter UC, and if it lives after that you get the second to get the AEC. Which can be done quite easily with a little bait or supraise factor. So at least against brits it does serve a purpose of LV counter.
But actually, the thread is about a light vehicle to counter snipers. I think if its stats are reasonable, it could possibly be available in T1, for the counter to be early enough.