It happens to me that when I edit mission of an offline campaign to modify something (e.g.: adding FoW) and then save it, I can no more see briefing. I think to have understood an empty ru.properties file is then created and shown in briefing screen. I spent a couple of minutes to copy in a DOS window all *.properties files into *_ru.properties file just by COPY command, but I thought would be nice to have next campaigns (as well as revised ones) already having this implement. This, of course, if I'm not missing something.
Ardisco, colpisco, meninfischio ("I dare, hit and do not care about it!" - Written on a SM 79 "Sparviero" during Spain civil war)