Ruzzian Shortages of men and material?
Then the Ukies should easily be able to retake the territory they have lost
in Offensive v8.0
You really do not know much about warfare, do you? Ukraine does not have to take territory back with an offensive. All they have to do is hold on until it is too costly for Russia to retain it. Again, see both the Soviet Union and the U.S. (and many other great powers) in Afghanistan. We see the same thing in Ireland, Algeria, Vietnam, India, etc., etc., etc. I recommend that you study some history.