I think I'll look at the Barbarians & their AI after we post 1.94.
The biggest problem with barbairans is that the number of them is based on the number of unowned tile and there is no difference in this value with the different map sizes. You can go into the CIV4HandicapInfo.xml and change the iUnownedTilesPerBarbarianUnit to a higher number if you're going to be playing on the huge map, that will slow them down for you but it will render them useless in the normal sized map.
The biggest problem with barbairans is that the number of them is based on the number of unowned tile and there is no difference in this value with the different map sizes. You can go into the CIV4HandicapInfo.xml and change the iUnownedTilesPerBarbarianUnit to a higher number if you're going to be playing on the huge map, that will slow them down for you but it will render them useless in the normal sized map.