Hey hey!
So, a small patch just went up for VCD. This one fixes some RUST instability (our Workshop publishing tool). It should crash significantly less now, especially on the 64bit build!
Also, please check out our guides here on how to publish, and what you need to know to make VCD maps:
Publishing guide:
http://steamcommunity.com/sharedfiles/filedetails/?id=361643315
Level Creation guide:
http://steamcommunity.com/sharedfiles/filedetails/?id=323918819
Enjoy!