the Cfgmodels is a list of p3d files without the p3d extension. It also contains hidden selections (sub meshes that can be toggled transparent thru scripting) if present. In addition to the bin issue, if some of the p3d's aren't posted here, you can end up with the infamous muzzle flash bug. The bin issue can be important; after replacing many of the default units I now have a weird hand gun bug, where if you pull out your hand gun, you can't move and when you fire the hand gun, your proxied primary weapon fires instead. Binarizing it is suppose to fix this. Missing CfgModels means you can't biniarize it.