Played this through as the Americans on Vassal with a friend, and lost resoundingly. As I noted in an earlier post, this version of the scenario was re-balanced for the Next Wave version of the base game. This is good, because I don't see how the Americans can possibly win without some additional Command and some reinforcements, to counter the German's significant superiority in both respects. Also, as the defender (with significant advantage in Command Points at least through Round 3), it's generally going to be inherently easier for them to take Concentrated Fire and Combined Fire actions, whereas the Americans almost always have to take Fire and Movement actions, again favoring the defender.
We're going to play this again, as the "Uphill Battle" version, and I look forward to providing an after-action report on this.
I don't recommend this scenario at all, in any way, to anyone. It's way out of balance. It's amazing to me that it got published as it is, being so unbalanced. What were the designers thinking?