oh men. the greyhound has nearly 3 times more armour then the 222 and is their fore nearly bulletproof. and the 222 unlike the greyhound is their to kill lv's.
The m20 is still far more versatile with smoke, mines ,free zook and crit repair. and the 222 is meant to be stronger as its purpose is a dedicated LV hunter. which at this point never really made an impact on the allied lv's ever.
Meanwhile SU M3 still cries in a corner. Before WFA, 222 is pretty good, it hardcounter clowncar, hunt sniper and 2 of it can fend off T70, now due to USF and AEC it is meh.