The mastercrafting helpfile has been updated and replaced with a new helpfile for custom crafting. One of the minor goals of this rewrite was to remove the connotation that all mastercrafts must be of a masterful quality. Beyond that, we seek to reduce the IC quality of items in the game while retaining writing quality, and bring them more in line with the setting, and make the rules for MCs clearer, as some quality assurance efforts were enforced by staff in the past without being documented on the website.
You can read more about custom crafting here:http://armageddon.org/help/view/Custom%20Crafting
A related document on submissions guidelines applies to custom crafting:http://armageddon.org/help/view/Submission%20Guidelines
If you have a mastercraft in the queue, note that these guidelines may apply to your craft, depending on whether the guideline is truly new to the process. A staff member will let you know if your mastercraft needs to be revised.