Tonight I was doing a little test and I loaded into an empty Syria map and was able to load in and idle on the ground for several minutes in VR with no crashes. Hmm. So, this gave me the idea to redownload and load in a fresh version of one of the mission files I'd been flying on consistently for the past weeks, and it seems to be working. It seems as if corrupted miz files were possibly the culprit. Can't say 100% but it's a step in the right direction anyway. I'll continue testing with other missions and see if I experience any more issues.