I would recommend you make a proper suggestion in the suggestion page. Not everyone knows what a 193 is so go into more detail on why.
There are two versions of the locomotive the older 1950s Krokodil locomotive usually found on selected US Military freight trains that actually use Bremen Oldenburg to West Berlin via Helmstedt Marienborn Border Station. The other is a newer Siemens Vectron locomotive DB Baureihe 193 or Österreicher Bundesbahn (ÖBB) Baureihe 1293.