By your request:
The unit cap for Altdorf Company of Honor is 4, the cap for Grundel's Defenders is 3. Since the Altdorf CoH is a more prestigious unit, I think their cap should be lower or at least the same. I think the cap for RoRs should be 2 or below anyway, both lore- and gameplay-wise.

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=835882468&searchtext=

@NoSkill: thanks,I've already planned to include this mod in mine. ;)

Now I had an idea recently: It is possible to restrict a building to a specific city and not only a province. Since Altdorf, Nuln, Middenheim and Talabheim are city-states with their own units and heraldry, wouldn't it be possible to give them their own troops?
I guess blue and red for Altdorf and Black and red for Nuln. Since I know of no mod that covered these so far, it would be a cool addition

I thought the same things but the problem is that in the same region will be more than 1 barracks superchains then ... and AI could build two of this differents barracks chains wasting useful slots.... I have to reworks region too (and in this way the work start to be more difficult)

Thought the same while typing the this.
But how are you going to rework regions exactly?

I've seen a mod that changes provinces regions constitution ... the work is possible but this work should add a big difficulties when I have to update mod

and making more fragmented regions could break the "user's" provinces perception, imo.

And it would probably drastically decrease compatibility

of course .... modding sometimes give you a lot of ways ... sometime you discover frustrating bottleneck

Ah ... guys , could you help me to discover some loreful (new or old) mod that change empire factions colours?

https://issuu.com/mag_white/docs/uniforms___heraldry_of_the_empire_by_c

It seems someone uploaded this book from 2009 with displays of colours and heraldry. Don't know if it's recent or not though.

Thank you Rowar

Yeah it's not a mod but I thought it might provide the sources you look for

I already had this books but thanks anyway my friend ;)