Game Crash On Alien Movement And Other Things

[Churon]

Well first I had my game crash at my first terror mission depending on whether I exited my sub at the second or after the seventh round (Always at Enemy movement). Then I thought that it could be just that one mission so I tried the next one - again crash after 7 rounds while not exiting the sub while enemy movement. There is no error - just windows again. makes no difference if I use dosbox or not. I'm starting with the file "terror.com" (guess that means it's some kind of windows version since it runs well without dos emu).

 

Any idea? Enemy movement is hard to avoid ^^