consistently every game I will crash when hosting The enemy within and most other PC players seem to do so also, I had a game where we where 4 PC players and we crashed 3 times as it changed host each time.
The crash happens when you overload the protector with Aeleph right as it exposes the ganglions, I have to ctrl-alt-del and alt-tab out of the game to then hard shut down the game if I cant click the "Spacelords has stopped working" window.
I'm on Windows 7 and Steam.