1 per 4? Why? Should there be a distinction between land and water provinces? Should the number of forts be dependant on the number of players in the game? The size of the map? The cost of the fort?
Its far too easy to just say 'build 1 per X'. Of course doing that may be better than what there currently is, but I'd hope that the analysis of this question would try to incorperate more variables that are easily determined by the AI.
It shouldn't be that hard to find choke points anyway, in fact the simplest way to do it is for the map maker to designate certain provinces as choke points and let the AI work with that information. However, I doubt that is currently supported in the game
[ November 13, 2003, 18:57: Message edited by: licker ]