We just ran into an issue with soundfiles in briefings that are delivered with a mod.
heres the crash-line:
LowLevelFatalError [File:Unknown] [Line: 605] Attempted to create a package with name containing double slashes. PackageName: /Game/Campaigns/Main/Audio//StormOverEurope/Audio/Gleiwitz1
it will only happen when the backarrow is used during the briefing, so hopefully won´t happen very often.
When the corresponding line in the editor is done without the extra "/" the soundfile will not play.
if u need more input let me know.
sers,
Thomas