add these to your "registeruserobjects.cs" file


MissionRegDis(desert_extra2, col_desert1);
MissionRegDis(desert_extra2, col_desert2);
MissionRegDis(desert_extra2, col_desert3);
MissionRegDis(desert_extra2, col_desert4);
MissionRegDis(desert_extra2, col_desert5);
MissionRegDis(desert_extra2, rock_desert1);
MissionRegDis(desert_extra2, rock_desert2);
MissionRegDis(desert_extra2, rock_desert3);
MissionRegDis(desert_extra2, dry_well);
MissionRegDis(desert_extra2, cliff_base);

and add desert_extra2.vol as a new VOL