Shay,
First of all - Thank you very much for the MCC mod and all the hard work that goes into it. It's highly appreciated.
I can confirm, that there might be a bug with adding factions in the 3d-Editor. I can only access the BLUFOR (NATO) Units at this time. If I switch factions to OPFOR (e.g. Rifleman) a standard NATO Rifleman is created (as BLUFOR).
Or maybe it's just on my installation?
Best
SH