How do Flavor Texts code for units? Or if not Flavor text, what does?

[Bahmo]

In the case of technologies and structures, flavor text tags are what drives the AIs to research and build them, based on their own preference. Unit XML is a bit different; the unit codes do have the flavor text tags, but they are left empty for all units except spies. However, I know that units are the most likely thing to be recommended a player build, so there must be something that affects this. Can somebody tell me what it is?

 

[BeBro]

Just guessing, maybe the ai just focusses on the strongest available (=researched) unit for a certain role? This would go for building, not for research itself though....

 

[Bahmo]

I don't think so, because many times I've gotten weaker units recommended, and it's not suggested by role, but at random, from what I can see. Furthermore, AIs with the military flavor will build military units, and I want to know why.