Cahokia was his capital! I went after poverty point and then cahokia to protect our flanks in the event he decided to come out after us once the war started. I've found it easier to start towards and edge, like a coast, where the enemy has fewer retaliation options, rather then going straight up the gut of their territory, where you are essentially surrounded. I disagree that cats being promo'd for barrage is . Time saved on our side is fewer chances for the AI to pump out extra units. Besides, cannot get barrage until you get CRI anyway. So it just means that you barrage with the CRI/Barrage units, then do initial attacks with cats that are CRI/CRII, and once the defenders are weakened, finish cleanup with the slightly weaker CRI/Barrage units.