Far from being a scenario designed by me this was scenario No 3 - Operation Debrecen from the Fortress Budapest Campaign book.
Unfortunately the Hungarians set up their initial forces in a position not knowing that the Soviets might appear behind them, which of course they did.
By the end of turn 2 any chance of the Axis forces winning had gone.
As usual everyone seemed to enjoy themselves despite the one-sided nature of the later stages of the game.