call in vs call in

I do not complain about Centaur... I complain coz I tilted myself by using carros again and trying to use pen buff for 45 muni each, which move pen from 60-65-75 to 80-86-99 value for 15 sec (~3 shoots). vs 720hp it is nothing. Carro can bounce even vs stuarts + less dps vs infantry at longer ranges (untill vet1) + less utility. This ability before nerf was a 90% pen buff, with beter fire rate bonus from vet1 + LV were slower. It should be better for 45 muni.... or switched for something else. Should just use semovete or more stugs.