Thanks. the airlines are Swiss Air and Izhavia. I'm transfering at DME (moscow) to go to Izhevsk.

It's looking like there's no hope for the forwarding, so I'll just have to master my transfer plan - the worry was just that waiting for luggage would cost me some time and increase the risk of missing my connecting flight.

Izhavia is a super small airline; their website implies they have connecting deals with other airlines but I can't find any specifics.