Played this again in reverse against The MP last Saturday. It was two months after the first encounter, so we both had to remember what we were about.
I played the Russians and was delighted to see the French attacking the town of Czarnowo itself. However, his use of the LC nearby forced a couple of infantry units into square and all of a sudden I was down to two cards and unable to react where and when I wanted to. A few lucky battle back die results kept me in the game and, after he ran out of cards on the right flank, I managed to get my own LC across there and clear up the mess, eventually bringing my two infantry units back out of square and then destroying all his units and leader on that flank.
But all the while the pressure was building in the centre. Not wanting to simply give up a banner for the redoubt there, I probably hung around too long and eventually lost it anyway. The French were advancing in force and, as I was finally winning on the Czarnowo flank, launched a bayonet charge against the artillery on my right flank and supporting infantry, to wrestle his final banners needed to win. I had just re-occupied Czarnowo and so would have gained the seventh banner myself to win had his bayonet charge failed. So, all in all, a very close encounter well fought and very exciting.
I agree, patience is key for the French. I actually think this is true for most scenarios where they're the attacker. My opponent's action to force me into square, halving my card count, was a superb tactic. After that, I expected him to do his utmost to keep me like that and only attack elsewhere when his cards permitted. With only two cards, the Russian has to be VERY lucky to be able to react to wherever the French are forcing the issue, but it does need patience by the French not to lose banners elsewhere needlessly. After playing this from both sides, the poor Russian card count really does give the feel of the situation the Russians really were in during the night attack, and I'd not want to start on a four card count again if possible.