ORIGINAL: mooxe
I know that your expectations of the AI are basically to just sit there and die.
I am not convinced you know what you think you know. Whether or not troops will attack or not may be based on many factors. The training and experience of the attacking teams, the aggressiveness rating of the teams commander, and for all I know there maybe other data in the map header data for each map named after a place.
In the following pic the attackers are all running toward the seawall. No problem. But this is the HUMAN player. The AI attack will be much more cautious.