Now I understand of what you speak: the formations made manually by the user
. In reality the problem isn't the velocity (I see the units march at the same velocity), but the fact that they aren't possibles, the group choice always the last standard formation selected.
But not having the game the deploy phase like MTW I found, from my point of view, much simple and direct use a standard formation over two or three mini-group of combinated force type. Anyway I hope the addon correct the problem.