"Launch rocket" is a mission objective in the side mission "Home Delivery" in Borderlands: The Pre-Sequel
Walkthrough
Just to the left of the cargo pod is the control console. Interact with it to send the rocket shooting off toward Pandora. Had back to Seymour to turn in the quest.
Home Delivery Mission Objectives
- Find creature nest
- Kill adult threshers 0/6
- Capture frozen threshers 0/2
- Talk to Seymore
- Plant threshers in rocket 0/2
- Launch rocket
Turn in: Seymour