I turned on the Flogger while playing with the Doctor, and he says something along the lines of,

"Fascinating idea, like something I would make."

Not sure if this is something new.

Nikolai, Takeo, abd Dempsey met up with him there

yeah its possible Richtofen was at Der riese....then went back to shi no numa after the first out break then some other guys from der riese went to Nacht der untoten instead of going with the doc........then doc met Dempsey and the others in shi no numa.........other people could be workin on the zombies too...... somewhere like Verrukt.... and the team(doc, dempsey and the others) go somewhere else to survive.......Paris?........idk

What if doctors quarters was dr. Maxis room and not richofen

hmmmmm...maybe...he's there while the team(Dr. Richthofen, Dempsey and others) is in Der Riese fighting the zombies