They just said it's like a nail or a drill to break the center of enemy formation, etc.
So I tried it in game. It worked!
So I think the reversed wedge formation is for larger mob force to make contact on the wings (and provide flank attacks), while delay the contact at the center.
This is my line-up, there're some mistakes on the ones in circle - they should be closer to the top to zoc flankers for the second line. It worked as expected, and the riot force didn't had enough time to mob my flanks
Thank the devs for bringing us such a masterpiece.
