CreateModel(
  2,                 //Number of detail levels
  "am0",             //Collision box file name
  // Object 0:
  "am0g0",           //PBO file name
  "MISSION",         //Texture directory
  SORT,              //This object shall be sorted
  40,                //Detail level
  // Object 1:
  "am0g1",           //PBO file name
  "MISSION",         //Texture directory
  NO_SORT,           //This object shall not be sorted
  2                 //Detail level
);
