So, people have been asking for the AI code - I'm asking too. I'm working on a Source (HL2, Portal, TF2 engine - no, I don't mean steam, I explained that somewhere, I belive) version, and, as I don't know how the AI works, could you post it here?
Either the code itself, or just what it does. Like:
1. Play pillars/towers
2. Evaluate enemy threats (eg higher attack is more dangerous, 10+ health is a waste of time to attack)
3. Deal with threats
Etc, etc, etc.
Of course, both would be even better.
As well as that, we could look at it, and suggest improvements. That way you won't have to do so much to it yourself. But then again, we'd know exactly what it does if you do, which maight make battles too easy.