After installing brits, all unit names changed. Some are old WWII (Stug III and Brummbar) Marines got the Syrian unit names (I think) such as T-62 and T-72. M16 gun renamed to IFV. SAW renamed to another vehicle... Helicopters are now HQ support unit.
I also installed (copy and pasted) two highly recommended BRZ files (Scipio), but I removed them from the data file asap after discovering the bug.
The core CMSF was purchased back in 2008 - and FAQ says that the installing files are valid only for 365 days. I am not sure how to reinstall the whole package?