In the German side of the Kursk campaign is there a way to prevent the critical bridge from being blown, even after you have captured it?

In the Shielding the Beach head scenario, what is required to "Repel the attack"?

We're mostly concerned about "AI: Using Standard". Does that mean the AI would be substantially better if it were using "Advanced"? We thought that concept was handled by the 3 levels of difficulty that are normally available. We notice that this choice does NOT appear in the Adv...

Where can I find the explanation of these options and how they will affect game play? The game manual nevers mentions them.