@karasis
thanks for the suggestion. I will look into it.
As for the units. You are right I am already at the limit, but I have some good news. I removed the peasant mobs from every roster (i did not use them anyway) and replaced them with town militia as the lowest tier unit available at the castle barracks. That works quiet nice.
Now I had 5 free units slots. And as I looked at Armenia, you are right, that they where not as developed. But that was attributed to the lack of unit space. I made them some new units, Armenian Infantry, Armenian Light Cav (Bows), Armenian Heavy Cav and Dismounted Armenian Guards. All are naturally reskins of other units, but I think I picked them quiet well and fitting. They have a polish unit Mounted Polish Nobles (the one that throw spears from horseback), but I will keep them (Renamed to Nahakars, technically they are a sepaerate unit), because Armenians where afaik well versed with spears and this unit fits it. So are the Armenian Javelinmen, just a reskin of lusitanian Javelinmen.
The last free unit went to the Apacheans, so they could have their dedicated general unit and not some makeshift medicine men chief.
As long as I do not find more units to delete or shuffle around, the Kwarzemimimi will have to make their fortune with what I gave them.
But I am in the process of taking a look at the roostes, while I implement the new recruitment system.