Elimination of a target of an MA comes with a rep hit according to at least 1 thread. Not sure where, but I found it for my most recent game to decide whether to blockade America or eliminate them. Wouldn't this a useful mechanic for 20k games as well? They might even be dumb enough to discard progress on late MA wonders, leaving you to clean up the scraps in peace. You're right that more detailed knowledge of AI mobilization is needed. Need to think about how to tease that out in testing. Those are great threads BTW. Most of them I had not seen or forgotten about.