This thread on M2TW AI personalities may be of some help: https://www.twcenter.net/forums/show...-Personalities
There's also a great page on the WIKI: https://wiki.twcenter.net/index.php?title=AI_Personalities
Here's a handy table from the Wiki Page:
So if you're going for a truly homicidal AI... maybe try "Fortified" (for land-based aggression) or "Sailor" (for more naval invasions?) for the first variable, and either "Caesar" (aggressive with an appropriate heavy infantry focus) or "Genghis" (even more aggressive) for the second variable.
Let me know how it works out... I love little experiments like this.
edit: looks like someone already made a submod for more aggressive AI a while ago, but unfortunately it's now outdated: New-CAI-PiterAI1-3-(artificial-Intelligence)-(eb2-1b