I'll take the case ;)

https://dl.dropboxusercontent.com/u/30664374/Crashy2.zip

^ Load this save. Wait about 3-5 seconds and a wave of aliens will come in from the north. It seems as soon as any of the those aliens appear on the minimap, saving produces a corrupt save. My character was standing by ...

I am also getting a very similar crash. Log is attached. Save is here: https://dl.dropboxusercontent.com/u/30664374/_autosave2.zip

My save is an autosave with appx 30 minutes of gameplay on top of a 0.12.35 save. I only did a little bit during that thirty minutes:
I replaced all my filter ...