1. 1 Find the slave trading hub in Subezac.
2. 2 Defeat 15 hostiles of Level 38 or higher.
3. 3 Perform an orbital strike on the grounded slaver fleet.
4. 4 Defeat the Kriosian slaver.

Dashed boxes are real missions from stfc.space's own data that aren't in the stfc.club database yet (usually base-building objectives like "Upgrade Shipyard to Level 20").