ORIGINAL: Franklin Nimitz
While we're discussing game tweaks- One question I have is what is the rationale for making regiments and brigades slower when entering enemy territory? IMO, if anything, they should be faster since they don't place such a strain on the local road network that a unit 3x the size would (though I'd be happy to just make the movement costs the same as divisions). I think they would also have an easier time maneuvering around obstacles and have a quicker response to changes due to a more nimble C&C structure (fewer echelons to pass orders and reports thru).
I suppose the primary rationale is related to logistical reasons. Since division is usually the smallest formation that is self-supporting, brigade or regiment really cannot conduct operations independently for an extended time. Making them slower in enemy territory is a crude way to simulate this, though perhaps is good enough.