Could the fact that your edited planets.xml is named Copy of Planets.xml be it? It could be crashing when needs something is the copy thats not in the default.
I got that as well, you need to search that file and delete a hyphen in it, that line has three, and it confuses the program. where it says <--- Override_Auto_Resolve it should be <-- Override_Auto_Resolve
Something that would help me a lot is blank XMLs for both land and space units, buildings, space stations, etc. that are commented to tell what each line of code does.
Then it might just plain not work in , thought I seriously hope not. From the start, I felt that you should build your own fighters and load them on the ISDs and Mon Cals.
I've been waiting for someone to put out a Orbital Shuttle and a Combat Escort Carrier, but they haven't surfaced yet, so...yeah http://images.wikia.com/starwars/images/9/9d/Imperial_Escort_Carrier.JPG Combat Escort Carrier featured in Rouge Squadron: Rebel Strike http://images.wikia.com/starwars/images/d/d6/Telosshuttle1.jpg Orbital Shuttle from Knights of the Old Republic 2