After having several games with the not so clever AI I have a request.
Ping beacons (typical for RTS) - or something similar. A method to communicate some basic requests to the AI demigods, such as "Defend here" or "Attack my target". Something to offer some co-ordination and team work that is so lacking when playing with the AI.
Edit: I've been made aware the Single player has this feature. It would also be great for multi-player games as well, though. It is a bit cumbersome to communicate with your team mates with the chat, and it might not even be appropiate if in the middle of some action. It would be a great tool for those that are unable to or do not wish to use voice chat.