Jonas Roscinas released a hard-surface mesh tutorial.
Jonas Roscinas from Guerrilla Games released a step-by-step tutorial covering his approach to working with hard-surface mesh concept in ZBrush. He will guide you through the entire process, covering the following topics:
The tutorial is 6 hours long with a voice over and included extra files: alpha files, ZBrush material, UI used in the tutorial.
You can purchase the tutorial on Artstation Marketplace.