Hi Matthew,
Try this save:
[ATTACH]636[/ATTACH]
There is one solider behind the door outside the ufo, an alien just inside the door. Walk the solider two squares into the ufo, then back outside the door and then back inside two squares. This causes a reaction fire crash for me each time.
Resis
2012-02-13_20.30.19.zip
2012-02-13_20.30.19.zip