Getting push back from my TA on an all LH metal TATL DEN-Muc-VCE, NUE-MUC-DEN trip because it is all LH metal, he put it on an LH ticket. I told him that I need it on an 016 ticket to get PQMs and PQDs.

Am I correct on that?
If I don't have a UA metal, how can I get an all LH metal ticket on 016 Stock? UA codeshares for the shorter flights?

I see open bis saver fares for my over water flights, so I want to get this booked and tryto get them to clear.