I didn't make it!
Well, I would select the bigger brush, click H to hide it. Select the inner brush, Shift - H to Unhide. Select the bigger brush, right click and choose Move Into Entity. Make sure one of the brushes is a func_destructible though.
That should merge both brushes into the same entity.
When I do a rightclick this list opens:
There's nothing like "Move Into Entity"
Maybe someone could please create a new GTK-Radiant file just with a destroyable Tie-Fighter (NOT NPC-VEHICLE) which I can copy then?
You could go the less proper route and just check the startinsolid and suspended spawn flags of the npc_vehicle entity...
What do the spawnflags do and how do i know which is the right value for me?
Default is 128 i think....
In simple terms, spawnflags are those little check boxes in the entity window. They're a list of toggle-able values that add up to a total value. The one value can represent any possible combination of the checked boxes.
Default value should be 0. And i believe that the combination for the NPC_Vehicle should be 130 in this case... Just check the boxes though, less fuss that way.
tha looks like a map from TFU is it not?t