Currently you can download my script pack buried in this showcase, and I'm willing to make custom scripts for games that show promise (this being one of them). I'm currently working on some 'tactical' AI, though it hasn't turned out so great yet. The best thing to do would probally be to make diffrent AI for diffrent situations, but that is hard to do for a freebie pack as you never know how the end user will use it. However, custom scripts for a specific game can be done a bit better, I suppose. Send me an e-mail so we can work some stuff out
EDIT: Tried the new demo. I've already posted my specs above, and I'm somewhat displeased. It had several points where the FPS dropped to 20 for about 3 seconds, probally due to the AI. I can help you there by making some 'speed-friendly' AI, along with some tips on how to get it to work best. Hopefully that should improve speed.
Also, I do have my anti-virus and anti-spyware and so on still running, I suppose it would run better if I turned those off. On the plus side this one was much easier to navigate.