@falagor hi :)

Can you help me with this issue?

But same map have two languages: english and russian and only some labels on english

This is as intended. The legend is English, the map is primarily in English (let's say for international tourits) and the Russian names are there only so that the English players can recognize the town and how to pronounce them in Russian.

I understand about towns, but lakes, mountains, passes etc also localized to russian

Sorry, this is really intended and stays as is. The map needs to remain accessible to most players. We have dual Russian/English naming for towns so that players can recognize the town names from tourist signs. English names of factory, airfield etc. are only informative in the map. We do not aim for realistic here (all in Russian and only Russian players can ready it), but for user-friendliness of all international players. It stays as is.