I tested the mod today, and all imperial units were properly locked. The only reason I can think of for some units not being properly locked to the reforms, is that you're not letting the mod load in high enough of a load order, which would naturally cause issues. If the public beta is higher in the load order (left side in the mod manager), change this mod's name by adding a few '!''s to the name, this will move it up in the list.
like this version https://drive.google.com/open?id=1LQ...ZnZ98soTWc3oPO I also took the occasion to add some of the missing new reform units, mostly ones from Carthage and a few older Roman ones so it shouldn't really matter for the IA campaign. As far as missing AOR units are concerned, after the marian reforms, some AOR units are removed to simulate the Romans changing into the auxiliary system instead. This is also the case in the base DEI version. Unless you're adamant that they are available to Rome in the normal campaign after the marian reforms, in that case I could add permissions for them I guess.