mdl_load_array( meta, &world->ent_challenge, "ent_challenge", heap );
mdl_load_array( meta, &world->ent_unlock, "ent_unlock", heap );
mdl_load_array( meta, &world->ent_relay, "ent_relay", heap );
mdl_load_array( meta, &world->ent_challenge, "ent_challenge", heap );
mdl_load_array( meta, &world->ent_unlock, "ent_unlock", heap );
mdl_load_array( meta, &world->ent_relay, "ent_relay", heap );