OK, do you have a vanilla TATW 3.2 installation? If not, make one (guide in the submod section).
Open custom_locations.txt in .../Medieval II Total War/mods/Third_Age_3(or whatever you named it after making a dual install)/data.
You will see a file like this:
Code:
; custom locations , add new locations at the bottom
custom_location Osgiliath Rivercrossing
{
location 255 127
image data/menu/battlefield_pics/custom_rivercrossing.tga
sett_locked yes
climate temperate_deciduous_forest
summer no
}
custom_location Rammas Echor
{
location 242 132
image data/menu/battlefield_pics/rammas.tga
sett_locked yes
climate temperate_deciduous_forest
summer no
}
custom_location Hobbiton (requires Village and Custom Culture)
{
location 94 247
image data/menu/battlefield_pics/custom_hobbiton.tga
sett_locked no
climate temperate_deciduous_forest
summer no
}
custom_location Edoras (requires Town and Custom Culture)
{
location 186 154
image data/menu/battlefield_pics/custom_edoras.tga
sett_locked no
climate temperate_deciduous_forest
summer no
}
custom_location Black gate (requires Large Town and Custom Culture)
{
location 273 149
image data/menu/battlefield_pics/custom_black_gate.tga
sett_locked no
climate sandy_desert
summer no
}
(...)
It's a quite easy file. Open the same file but then from vanilla Third Age and add the custom locations you want back. Remove the same amount of custom locations or you'll get a crash.
Hope this is clear