Ok. If you want to have 9 nazgul, I sugggest you to have Witch-King, Khamul, Morgomir, and 6 Black Riders, BUT like heroes, not in horde.
By first, we will disable nazgul horde from mordor siege works.
CommandSet.ini:
Search for "MordorSiegeWorksCommandSet" and look at this code:
We must disable all "Command_ConstructMordorBlackRiderHorde" code. So, we will add ; before all this parts:
It makes code after ; invisible to computer.
Now, we will add nazgul heroes. Instead of copying Morgomir and Khamul, we will just add "normal" nazguls.
PlayerTemplate.ini:
Search for "FactionMordor" and in BuidableHeroesMP line add "BlackRiderMounted" six times.
It will looks like this
Is it over? NOPE. BlackRiderMounted object.... isn't exist. We will create it
MordorKhamulRider.ini
At the end of the file, after all ends, after last line, create new line, and paste there new child object:
Lotr.str:
Anywhere, add this part of code:
CONTROLBAR:NazgulRecruit
"Recruit Nazgul"
END
And.... Thats it, we have 9 nazgul heroes!