Just copy h5m-file from folder "ENG" to your folder "MAPS" in the game directory, and it should work. Do not copy any other files, and do not place any other folders, empty or not, in the maps directory.
lol this is just so unbeleavable.. other maps wih or not folder in maps folder are listed in game.
well anyway now i remove in ENG folder h5m file and also whole RUS folder and leave just h5m file in maps folder and now i see it on list.. stupid game i say