NOTE: Patterns were recently updated. I will fix these within a week. Doublecheck all Patterns and locations first.

0:00 Introduction
1:24 Patterns
1:33 Pattern 56 (Magister's Lab HM)
2:29 Patterns 70, 75 and 91
3:23 Sharen Modules (Duration for Invis)
4:57 Lumber Yard Recon Mission Route and Mini Boss
5:28 Moonlight Lake Recon Mission Route and Mini Boss
6:28 The Storage Recon Mission Route and Mini Boss
7:43 Void Shard Information
8:11 Monomer Void Shard Farm Spot (Fortress, Fallen Ark)
8:39 Polymer Void Shard Farm Spot (Fortress, Frozen Valley)
9:17 Organic Void Shard Farm Spot (Hagios, Dune Base)
10:08 Void Boss Killing
10:57 Misc Drops
11:35 Other Tips and Optimization

This video covers everything you need to do to farm Ultimate Viessa, written by someone who farmed Ultimate Viessa.

You'll be dropping Ultimate Viessa Enhanced Cells, Ultimate Viessa Stabilizer, Ultimate Viessa Spiral Catalyst and Ultimate Viessa Code with this guide, as well as Monomer, Polymer and Organic Void Shards. The game is The First Descendant.