AI is being strengthened via patching. Note that with HOI you are playing a huge "what if" exercise. So you have to develop an AI that has to initiate and/or react to all manner of input and do an intelligent and reasonable job of it. Most people can't do that, so expecting a computer AI to do it is akin to wishing. With that said, if you choose to dominate South America as say Argentina and then compete against superpowers, then so be it. Just remember "what if..."