From 3DGE Wiki
OVERVIEWCamera-Man is a new scripting language which has been developed especially for 3DGE. At the moment, 3DGE uses this to define custom cameras, though COAL. This manual is designed to get you up-to-speed on all of the functions that CAMERA-MAN provides.
The standard camera scripts for creating these are both saved *and* loaded in:
Camera-Man files can *only* be used if using the PAK or PK3 filesystem (or external files in doom_ddf/cameras).