I've been a long time user of Vegas in its many iterations. Some years ago, someone had written a script called Batch Render v2, which I believe went back to Vegas 8, and it was a real time saver. It was really brilliant in that you could batch render with the naming convention of your choice. I typically had it write the files based on the name in the Region marker.
While this script worked through Vegas 13, it appears to be incompatible with Vegas 14, and I'm despondent. The stock batch render script incorporates the selected media type into the filename, which is particularly lame.
Does anyone know of a utility that will perform a batch render of an entire project with the naming convention of your choice?