Have you all looked at the Berliner Linientronik (lists what depot and what bus BVG use on what route)
I didn’t know there was GN16 as in OMSI we only have GN14, but for the MAN A39 we have DL05,7 8 and 9
I wonder though, with the Citea, the 200 and 100 use either GN or DD, the Citea is used on night services on the M29 (Kurfurstendamm - Roseneck) 110 from the Zoologischer Garten to Oskar Helene Heim, and N10 i think is now both C2 GN and VDL Citea.
I could be wrong but with the Zoo offering so many varients of routes also. I wonder if Cicerostrasse depot will be featured too up at Adenuauerplatz