Maybe Flanker or other Russian simulator players can answer to my question:

I am playing Falcon4, and flying Su-27. However I don't know how to use
Russian precision bombs KAB-500Kr and KAB-500OD. I suspect they shouldn't
be simulated well in Falcon4. The former seem to be the same as US made
GBU-15. Is it correct? And I don't know little about KAB-500OD. I want
to modify as much as possible.