1. 1 Reach the Corvallen outpost.
2. 2 Defeat the Tholian ship.
3. 3 Bring Niir to the meeting.
4. 4 Return to your Station.

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").