Originally posted by MoonlightHowler
Yupp...
As fisher42uk said, that file has nothing to do with anything online. It only holds Campaign and Spec Ops information. However, I think the key to modded lobbies is the PICS Rules files like the GRAD0_MP.?
You could potentially mod the picture files to run unsigned code, I looked into this a few weeks ago and the only thing I could find was an old Tiff file exploit which was patched and all it did was momentarily crash your ps3. No-one managed to get it to run any code.