At least at this stage of the game, concerns like personality and natural aptitude is really overthinking things. I know the intent is for the game to be as immersive and detailed as described, and that's great and all, but surely just making a military that follows coherent plans from the player is a greater priority than the martial proclivity and zeitgeist of your conscripts.
We've already got a military that
follows ignores (fix'd) coherent plans from the player -- but given that squads and commands will be improving anyway, now seems as good a time as any to think about the factors that could make it more Dwarfy. I think my proposed model is like a lot of the other 'chrome' in the game: at least 95% of the time you won't notice it, but if you ignore it you may discover some amusing emergent behavior.
Imagine the glee when you see something like:
Morul Firebrand the Rain of Alcoholic Death has been struck down!
Cog McRedshirt now commands the Cheese-wheels of Suffering
Cog McRedshirt has entered a martial trance!
Urist Goldbrick has become enraged!
Reg Thornwhips has become enraged!
Dumat Anviltongue has become enraged!
As long as the upsides and downsides for a player are about equally balanced after any improvement to the game, I think I prefer an unpredictable game mechanic to a model that's simple or coherent. If Toady leaves enough clues that a player can suss out what went wrong, and doesn't amp up the micromanagement challenge, then bringing the personalities of the dwarves into the military makes perfect sense to me.
I can definitely understand where you're coming from on this,
Aqizzar -- yesterday I had a marksdwarf decide that his station
near the fortifications was not as good a fighting position as
outside the fortifications, where he had more room to swing his crossbow and where the goblins could just take the bolts from him instead of him having to go to all that trouble to shoot each individual bolt. His violent and entirely-deserved death caused a tantrum spiral that took almost a year to undo. Military dwarfs who follow orders and attend their station would be a welcome relief, but the occasional incompetent dwarf (as long as the incompetence is
justified within the game world) could be lots of, er... Fun.
Don't worry, though, unless Toady personally comes by and says "YEA VERILY THAT'S A PRETTY BITCHIN IDEA JURPH" it will probably be consigned to the dustbin of convoluted suggestions what never went nowhere on account of being so convoluted.