They are not codes as they are Hex values located in the zone part of the patch. There are a few tuts on NGU on how to get them modded. What i did was i took a patch i liked the models in and i replaced that data with my patch so now my private has areosoul's beast models in it<3. If you need help I could wright you a tut on how to do it yourself or I could walk you threw it step-by-step on skype. If you have it