FileSystem

The engine uses a simple virtual file system implementation exposed as cdc::FileSystem.

ArchiveFileSystem

This file system reads files from the Bigfile using the native underlying file system.

MultiFileSystem

The multi file system can use multiple underlying file systems. The request will be passed to the first matching file system. An example of this is a patch archive being prioritized before the regular bigfile.

MSFileSystem

This is the native file system on Windows and Xbox.