Russian cavalry rarely attacked the Germans in mounted formation - this is not the enemy that would allow this to be done successfully in the overwhelming majority of cases. Only against completely disorganized troops... But many of Hitler's allies fought on the Eastern Front - Romanians, Hungarians, Italians and others. Mounted attacks against them were much more effective and happened much more often. There are even known cavalry battles with sabers between the Soviet and Romanian cavalry in the spirit of the Napoleonic wars.
But for this you will need to make a Ukrainian village - it looks different. Most of Ukraine was forest-free and the buildings there were mostly made of clay.