Do you think that posting how great and glorious this game is in every single thread is better than whining? In my last game on Immortal, my Battleships met Catapults. So much about upgrading. Maybe the AI is now better at it, meaning they sometimes do it. But in many cases, they are not upgrading. @OP try one game and judge for yourself. I think the game got better, but it's still inferior to 4 and 5 so I would advise to play them until this is fixed (by 1 or 2 major xpacs).