[Arghis]

if i understand well you say that some players abandon cities for avoiding them to be captured ...

if your friend at CFC is a good player, i'm ok. what i call a good player can include being a strong player, but is first someone who plays for making the game interesting.
abandonning cities the way i understand it seems like an exploit of a game mechanics (unless in very specific case, hee and there). so i agree with Matrix

GPS implies the fact that we can discuss in the mail used to send the save, but we can't discuss in other context (MSN, common mail, ...). ok for me.

Also, those scenarii seems having been built for 1 human player. we can perhaps arrange things in the editor, no ?