Hi again!
I have been checking my Leader Mod campaign as the AI side (USA). I will report what i have seen and what i think could be the things on this mod that upset the AI.
The mod uses a very modified setup with leaders number of stars that are very historical and very good for PBEM but i suspect don't make life easy on Athena.
When the USA receives his big easter army on Washington/Alexandria, unlike on the vanilla campaing, it arrives as a big stack, not formed as an army under McDowell, as McDowell is only a ** on the mod.
The only *** USA leaders (not counting Scott who is **** and permanently locked) are Halleck and McCLellan which appear on the western theater and latter or at least locked in place some turns.
It seems the AI has severe problems moving one of this leaders to the east to make an army when they get available
On my game, on october 61, Halleck is on Cairo locked (don't know why, maybe he was wounded ?

) And McClleland is strollin alone around Kentucky going from Evansville to Louisville.
They have no HQ unit near. The two HQ USA units are: one on Ashland (east Kentucky) stacked with Fremont (** star on the mod) and some units and the other loaded on a non moving transport on the middle of the Chesapeake bay with Burside and some brigades (don't ask me why

).
It seem to me USA its not going to form an Army anytime soon...

leure:
And no army means no corps, no organization, huge CP penalties and no offensive power.
Look at the attached screen below.
That is the main USA stack under Banks. He have 80.000+ men, a lot of divisions, supply units... and a whooping combat value of 82!!!

because they are at nearly zero cohesion from moving up and down the north of the bank of the Potomac going nowhere.
They have not seen a single battle since the game began, but notice some of his elements are half red. I suspect because they have not lied still enough time to fully regain the strength they lack when they appear on turn 3 or 4.
As i see it, the distribution of *star leaders is not the problem. USA has plenty of leaders around the map and 15 or so divisions formed.
I think teh problem is the changes on the command chain.
It seems the Ai needs some helps (*** leaders and HQ units stacked together for example or appearing as the same time) to organize his main armies.
If some other players could give info on the development oh their campagns against the AI with this mod, it will be very helpful.
Maybe i had been just very unlucky on mine
regards