Nice to see how the battle turned out on your table and very interesting that it was very fast.
I think that it was very hard for the prussians to wait. Austrians moving first is perhaps enough to give the defenders some troubles.
I myself would play it again taking the french command. I believe that I learned one lesson. The austrian infantry is far away. Therefor the 1st allied brigade under Zastrow could face the pandours and attack them. To use a part of the large body under Rupelmonde in the center was a fault. The french infantry in the center should stay together maybe only walking backwards the whole game and repulsing the attackers with volleys.
It is great to read that you enjoyed the Scenario and that it works well for other nations too.
Es marschierten drei Regimenter wohl über den Rhein...