umm idk if he means in a .ff or .cfg ? in a .ff you have to extract your .zone then open it in hxd then search PLATFORM_MANTLE
And then replace it with &&1.GAME_UNKNOWNCLIENTCOMMAND and unknown cmd is gone
In a .cfg you have to open up the usb menu in note pad and put set CMD_1337_H4X0R 1;wait 1337;say ^1IM GAY