I split the massive 21-unit team into two, and viola, the AI managed to think its way out!
Now, for another question: if I have one group visible to the AI (but not the other two), will the Seek&Destroy team target that group and travel to attack, or go on to seek for others?

Thanks a lot! That's very helpful for me to redo the AI grouping. I'll optimize the teams and report back.

I see. I guess it's just my laptop being lame then.
And I would definitely love to see some documentations about AI settings. It's kinda hard to know the defaults and limitations right now.

FYI I tried again with the official patch 1.6.7, but still AI couldn't finish thinking.

Love the game and have blown through the Japanese campaign, and so decided to create a custom scenario. I tried a trial run and noticed that in the first turn, the AI is already freezing up, stopping its thinking process halfway of the progress bar. Admittedly, my laptop may not be very powerful (i5...