Talk to Moxxi is an objective in the Story Mission, Sanctuary in Borderlands 3
Enter ship
Talk to Lilith
Install astronav
Check on Tannis
Melee thermal control system
Check on Marcus
Shoot fire suppressors 0/3
Talk to Marcus
Browse SDU Case
Check crew quarters
Release trapped crew
Talk to Ellie
Open garage to space
Go to supply closet
Bang on supply door
Find Moxxi's nightclub
Talk to Moxxi
Follow Moxxi to slots
Use slot machine
Buy something from Earl
Pick up entropy accelerator
Install entropy accelerator
Return to bridge
Navigate to Promethea