The admiral is right, you need to complete the basic engine before you can add AI. This is so that when you create the AI, you actually have something for it to work with.
When you create AI for an RTS, you basically make it think like you do. First of all, you need to create a data collection system so that the computer knows as much as possible about the playing field. It can then use this information to build units in the correct spots, defend from attacks, and find safe retreat points. This is a very brief overview...I once wrote up a whole bunch for someone in a thread, I will try to find it...
Here are some links to RTS AI threads:
http://forum.thegamecreators.com/?m=forum_view&t=34421&b=1
Dang, can't find any others...
Good Luck with your game
Xander Moser - Bolt Software - Firewall
