I'm playing skirmish mode against AI. The victory condition is set to standard. Every time I start to get the upper hand, I get a message saying that I've won. It seems like the AI resigns. I remember in the original version, you had to find and kill the last soldier and destroy the last building before winning. Sometimes it was frustrating to hunt them down, but the feeling of victory was much better when I crushed the enemy completely.
How can I set the victory conditions to be similar to those in the original version?
I've tried a lot already, and even when I set the mode to King of the Hill, the game didn't wait until I killed the opponent's king; the AI surrendered as soon as I gained some advantage.