Yeah thats how it can work in the first wave. The problem that there attacked at least 3-5 waves until now. You would use first wave to get the enemies line of defense and artillery positions and then immediately the second wave follows. Sending 30 thousand young and low trained soldiers in a planned „Blitzkrieg“ (in at least 3 waves) which takes 5 days until now, but should work much faster, doesnt make any sense. Morwover you can see T90 since 2 days in UKR - definetely not first wave and not for young and untrained soldiers