| 2024-10-20 04:39:46 | psenough | Updated Metal Master's membership of Hardcore: changed group to Hardcore |
| 2022-09-25 11:59:04 | menace | Added link https://csdb.dk/scener/?id=32356 |
| 2022-09-25 11:58:54 | menace | Added Metal Master as a member of Hardcore |
| 2022-09-25 11:58:45 | menace | Set location to United States |
| 2022-09-25 11:58:41 | menace | Added Metal Master as a member of East Coast Importers |