This is a very good idea in theory, however even if the scripting could be writen so that the human player could use this feature their would no doubt be several 'unwanted features' that came along with it. In RTW I believe it it hardcoded so that you cannot seperate a unit in to sub-groups. But even if we could get it to work for the human player nearly bug free, it would be next to impossibe to get the AI to use the new feature. Even if we could get the AI to be able to use it, it would be even more difficult to get it to use it *properly.* This would give yet another added advantage to the human player.

Though if it could be done, it would make for a better multi player experience.

All i'm saying is that this is a good idea, but it is too advanced for RTW. Maybe in the future titles...