The computer AI in Thrones and Patriots might be better than in other RTS games, but it is still far from perfect. What I've noticed comes from my extensive usage of air superiority as a tactic in the information age - the AI practically never scramble fighters to meet by bombers. Multiple times the computer controlled fighters have risen out of an airbase in the city my bombers are bombing and simply flown away to fire their missiles at one of my wonders.
The second problem, and potentially the greatest, is that I never have the need to build an air defense except for my own amusement. To make the game more realistic I tweaked the cost of the bombers and fighters upwards, and now the AI does not build any bombers, and the only thing they do with their fighters is attack my wonders, which they cannot realistically destroy because with two fighters it would take several hours!
Additionally, the AI in my games (I play at moderate - tough) has stopped building nuclear missiles entirely, it has never built conventional missiles, and even when nuclear missiles are built it just fires them randomly at city centers. Another common mistake, when they rarely do build nuclear missiles, is that they send two nuclear missiles within several seconds of each other at the same target (!).
The second problem, and potentially the greatest, is that I never have the need to build an air defense except for my own amusement. To make the game more realistic I tweaked the cost of the bombers and fighters upwards, and now the AI does not build any bombers, and the only thing they do with their fighters is attack my wonders, which they cannot realistically destroy because with two fighters it would take several hours!
Additionally, the AI in my games (I play at moderate - tough) has stopped building nuclear missiles entirely, it has never built conventional missiles, and even when nuclear missiles are built it just fires them randomly at city centers. Another common mistake, when they rarely do build nuclear missiles, is that they send two nuclear missiles within several seconds of each other at the same target (!).