I seem to be unable to add a defendable fort in the battle editor. The editor places it correctly but after saving & loading (in editor or battle) the buildings have vanished, with only the dirt tracks left. I guess it's because the editor will not add the fort as a settlement, and I have figured out that if one would be able to edit the description_battle.txt it would be possible to create a working fort.

A standard settlement code is:

Code:
faction	greek_cities
settlement
{
	level city
	tile 191 65

	year_founded 0
	fortification 2 greek, walls 2 towers 1 gates 1 gate_defences 2
	population 6000
	settlement_tax 0
	battle_pos -96.000 369.225 -160.000	rotation_0	0
	plan_set default_set
	faction_creator macedon
}
I guess one would have to set the correct settlement level ("level city" above), but I can't find a name for it. It isn't fort, nor is it camp. plan_set doesn't seem to affect that. So how should this be done?