As it is your formation sort of depends on the order in which you recruited your battle brothers. Meaning that I have no control over the formation that enters the battlefield (yes i could control the order in which I recruit men to fit the formation, but.. yeah that takes ages). I would like it if it is possible to set a fixed formation so that you atleast have all the characters in the the right place and you don’t have to spent one or more turns putting the right guy in the right place.
When ambushed you could reverse this formation (so the back line faces the enemies first) in order to reflect the element of surprise.