The manual is missing a lot of info and has not been updated.
However, I did notice that in the default directory is a file named whatsnew as a PDF dated 12/12/2018, it's not a lot of help but some but more interesting and more importantly is the Word Doc file called Whatsnew 4.1 dated 9/29/2018. This document has a lot of good info in it.
It's still not 100% informative, for example trying to decipher the New Mud Scalar rules is not even in the default manual but it has a little blurb in this document. But it's very vague about the mud drying rates but 100 is neutral. Neutral to what?
The write states:
A minimum value of 1 divides the default drying by 100. A maximum value of 10000 multiplies the default drying by 100
So does 1 mean it dried really fast or slow and vise-versa with 1000?
It does has sections on: Dismount Feature, Density effects for unstacked locations, Variable Initiative Advanced Rule Option, New Mud Rules Scalar, and there is a detailed section on Naval combat that Bob originally posted on a thread somewhere.
A section on Supply Enhancements (thank the good Lord), a section on range limits and deployment recovery (most will figure those out by playing the game), but this last one is great once you have dug in your arty or hq units and use them to fire as they will retain their dug in status (I have verified this my PBEM games and its nice to know), also this effects air units which is really nice. For example if you put your Air units on AS or Int, or CS and then use that unit to do an individual ground attack or port or airfield attack at the end of that they retain their mission type so that if the turn ends you still have them in CS, Int or AS, same with the dug in arty.
There is a section on BFTS (battle field time stamps) and new bridge and destruction rules as well as a small paragraph for the new mud and snow rules.
There are a things that are not listed in the manual such as how to set the time to BC or AD, Alternative icon, equipment file stuff.
Lastly (and I did not know this, since I just found this file today) is a manual errata section!
Crazy stuff...
