Hey,
I see that you fixed the names of the cities in Serbia when I click on
"Browse by campaign", so, I don't see the question marks anymore (good
job!). But, the problem is that only the first 7 characters of a city name
are shown.
My other suggestion would be that you leave all the names in latin
alphabet, because any foreigners that would want to use the app while
travelling through Serbia could have troubles with the cyrillic alphabet.
Thanks a lot, you've done a really great job so far!
Tamara