Thanks for the update. Now, when I have a space battle at Yavin 4 I get an exception. I'm playing as Rebels with full Techs and I had a Rebel Trooper unit in orbit and was attacked by an unknown Imperial Fleet. I know it's going to be much easier to fix once the full edition comes out, so I'm not in any terrible hurry and I don't want you to feel like I'm making any incredulous demands on you. Thanks for the mod, it really excites me for the real thing. EDIT: Upon further investigation the problem occurs whenever I have land units in orbit around any planet.