Oh, sorry. VFT is vielfliegertreff.de, the German equivalent to Flyertalk
I understand the question the following way. If I want to renew Gold and take 4 LH op by A3 flights, do I need to earn 24k or 12k miles to renew my status? (and the equivalent for upgrading).
Since these flights are operated by A3, when credited to M+B they will show up under their A3 flight numbers (as all codeshares in the *A do).
I don't think that M+B cares about the ticketing carrier when it comes to "counting A3/OA flights" for tier upgrades renewals.
Here's the exact reference:
https://www.vielfliegertreff.de/foru...8#post-3088735