Talk to Tannis is an objective in the Story Mission, Blood Drive in Borderlands 3
Return to the The Droughts on Pandora
Go to Devil's Razor
Destroy gate with vehicle
Go to Roland's Rest
Meet Vaughn
Go to Splinterlands
Get into Carnivora Festival
Drive onto conveyor
Start conveyor
Go to Big Donny's Chop Shop
Find Big Donny
Kill Big Donny
Take car keys
Use crane controls
Drive golden chariot
Drive chariot to Carnivora gate
Get into Carnivora
Enter Carnivora gates
Catch up with Carnivora
Destroy fuel lines 0/3
Kill supporting crew
Destroy transmission
Clear remaining crew
Destroy main tank
Board Carnivora
Find Tannis
Choose your intro music
Enter arena
Destroy Agonizer 9000
Kill Pain and Terror
Talk to Tannis