IGMD is a subfolder of GameDataFolder, where the level logic is defined, chapter by chapter. If the contents of this folder are missing or corrupt, nothing interesting will ever happen :-)
Notes on this folder
- The scripts in the subfolders of IGMD are plain-text files with the .bsl extension, written in BungieFrameWork Scripting Language. See BSL for more information.
- The level folder names are case-insensitive for Oni, so you can rename "EnvWarehouse" to "eNvwArEhOuSe" and you'll still be able to play Chapter 1.
- The Mac and PC scripts are almost identical, but there are minor differences in tctf_ii_cutscene.bsl and tctf2.bsl for the boss battle of Chapter 13, depicted HERE.