How to create new subdir for your theater?
Simply copy-paste the Korea dir, then rename the newly created dir to what ever you like.
Copy your new theater.l2 and theater.o2 files into this theaters terrain\ subdir.
Run tinstall to the dir you created, like:
"falcondir\tinstall.exe falcondir\terrdata\Ohio"
Hmm then you need to select your new theater, this is a bit complicated as you need to edit registry (terrain switcher dont support other than Korea / Balkans). I'm gonna create some tutorial of terrain switcher's registry edit.
But easiest way to test your terrain, install balkans, copy your l2 & o2 files in there, run rebuild terrain, select balkans terrain and start to fly
PMC TFW,
Snake Man.