This may be old news, but may I ask: Does the New Battle mode still allow the player to choose the interceptors as the craft? This seems like an easily avoided incompatibility. Does it just mean that Nord has to edit his files to delete interceptors from the list of crafts the player can choose, or is there something else that needs to be done? These crashes can be avoided if the player knows not to do this. Also, it seems like one would never encounter this in the campaign anyway.
It doesn't allow manned craft.
But since pilots, we have manned interceptors too.
I've added more checks, it should not happen in the next version.
There are also certain mod alien races which cannot be chosen for vanilla sites. These incompatibilities make the Randomize button a little risky. I have attached some screenshots of combinations of options which led to a crash.
"New Battle" is a debug tool, without any guarantees.
Not supposed to be used for playing.
In vanilla all missions and races are very uniform and compatible with each other...
... but in mods, there's about a million reasons why certain mission/race combinations will fail.
Use at your own risk.