you can't patch from 1.2 to 1.5. you have to download the 1.3 patch before the 1.5. , I occasionaly turn off Fog of War to see how the AI is doing in distant lands. I also modded to unlock all factions. Wait does modding count as Cheating? I'm so confused. Anyways if you have to cheat to beat Vanilla AI that is really sad so I don't use any other cheats.