You will most commonly see the “could not find zone code-pre-gfx-mp.ff” error in the following scenarios:
"could not find zone code_pre_gfx_mp.ff" is a common issue in Call of Duty: Modern Warfare 2 (2009) and other entries like Black Ops III could not find zone code-pre-gfx-mp.ff
If you installed only campaign, multiplayer files may be missing entirely. Re-run installer and ensure “Multiplayer” is checked. You will most commonly see the “could not