I know this has been discussed here before, but I was thinking about this as I went to sleep last night.

I was always bothered by the lack of the ability to raise levy legions suddenly in the face of a surprise attack or other sudden need. The scene from HBO's Rome comes to mind, when Pompey said something along the lines of "with the snap of my fingers ten legions would spring up around me." (obviously he said it much more poetically.)

So I was wondering- could MTW2's crusade feature be used for this purpose? That game didn't hold my interest long, so I'm not too familiar with the mechanics, but could it be implemented and not abused by the AI?

I'm interested to hear what team members have to say.