I'd like to mod the doctrine, too, to depict Russian 1941 tactics, for example, or to implement the German Field-Replacement Unit and March Bn regime. I'd also be interested in creating WWI scenarios, but the routines would not be able to recognize trench lines, let alone to use such lines as springboard/home base for all or most of the attacks. The Ai would also have to spread units across the trench lines evenly, to cover the whole front. For the replacement regime, the engine would have to be able to spawn and dissolve units and hand the authority over that process to the player (or AI commander). You could test that by pitting 2 single coys against each other and taking away all their firearms (or ammo, if you disable supplies). Sound can be modded in the game, so you could even replace a gun sound with a mix of stabbing sound effects and a battle cry or something like that, if bayonets work. Maybe Dave will have time to tinker with the formation regime, at one point. Yes, I took a look at that in February, already. I just checked the screenshot again, and a detail caught my attention: The coy-based formation (screenshot 1) spans across ~1.5 km. What happens if you select auto, instead of setting the line's width manually? And what happens if you set the formation to 2 lines (or rows, if you will). Historically, I am guessing that the front row kneeled, so that both lines could fire, or the 1st row stepped back after firing the salvo, reloaded and went back in front to fire the next salvo, after the 2nd row had fired its salvo.