OK, we've just patched the Ferret-driving-through-the-wall crash bug and are updating the Desura auto-updater branches with V17.51. Dunno how long Desura will take to approve it, but I'm not uploading the standalones until I've confirmed it's fixed
The update contains only a patched Xenonauts.exe, which can be downloaded direct here: http://www.xenonauts.com/devfiles/Xenonauts.exe
Let me know how stable the game is with the update. The save game crash etc has not been patched, just the destruction of terrain crash.