Even the CS is more of an approximation than a strict indicator of combat effectiveness. There seems to exist enough variation that even knowing the exact numbers for all enemy units will not allow much more accurate estimates as to the outcomes of a battle than we have from current methods (Scouting).
Pretty correct. Given unit size and CS, and knowledge of my own units stats and perhaps 1 or 2 more players allows good enough approximations given the random factors Tom seems to purposely throw into the mix anyway.
But too the main part, you want to hand over more control to the marshal in one breath, by getting rid of the preconfigured formations and allowed them to set detailed line settings for each unit type, but then insist troop leaders need to be pressing more buttons? You can already achieve the first by setting marshal settings to nothing and dictating unit settings to the troop leaders. Should you also suffer a penalty if your unit is set to aggressive and you are on the defense? Why I'm against this is we must remember many troops leaders don't have massive amounts of time to dedicate to this game, so making more busy work for them to worry about when they log in takes away time they could be using to interact with other players via messages and RP.
Secondly lets examine what the defensive setting really is. It is in a category called Your men are instructed to act, the other options are evasive, normal, aggressive and murderous. Now to me this isn't saying whether the unit is "defending" or "attacking" but affects the way they do either action. I can defend the wall in a aggressive or murderous fashion. Like wise I can advance upon the enemy in a defensive or cautious manner, shields locked, measured step.
The whole advance or not advance question is to me not related to this setting at all, it dictates whether my men fight with reckless abandon in the melee, like some barbaric horde, spread out swinging their weapons wildly with little regard for there own defense, or whether they take the measured approach with think of when we imagine a roman legion advancing in perfect formation.