Unfortunately, I haven't received any replies and ideas. So I'll just mention my personal experience - maybe it can be of any use to any other person playing against this system.

To my great luck I won the second game 3-0 after losing the first 2-0.

After 7 friendly matches with the people from my FA I've decided to use the classic 442 playing hard attacking through the center. After the first goal I switched to high pressure and personal defense with offside trap. After the 3d goal returned back to low pressure, zone.

So my road to the cup hasn't yet finished)))