Launch CoD4 and load a problematic custom map (e.g., mp_carentan_custom or any mod requiring code-post-gfx ). You should no longer see:
: If you are using a mod like COD4x , ensure you have followed the installation steps to drag the client files into the main folder and run the install command.
Look for a full mod release on the server’s website or Discord. Download the entire mod, not just a single file.
Players often place the .ff file into Call of Duty 4/zone/english/ because they see other .ff files there. code-post-gfx.ff is a mod code file , not a vanilla zone file. It belongs in the specific /Mods/[ModName]/ directory.