For example, when starting a general Hydran campaign the first few turns may produce AI battle results across the entire map, but then for several turns AI battle results occur only in the hex column my ship is in and the hex columns to the east, plus one hex column to the west. I have already experimented with changing most of the settings in metamap.gf and the other .gf files in Single Player in my modding attempts. I always play early era to start a camaign with the early era map, although I doubt starting at a later era would make a difference. Also, this AI behavior occurs when I play a clean install of either 2500 or 2552, so it is not a modding issue.