Give map to Tannis is an objective in the Story Mission, Taking Flight in Borderlands 3
Give map to Lilith
Take Vault Map from Lilith
Go to Eridian dig site
Give map to Tannis
Loot area while waiting
Defend Tannis and the map
Let Tannis examine map
Head to ship in Raiders' Drydock
Drive biofuel rig
Collect biofuel (by running over stuff) 0/10
Get astronav chip
Deliver biofuel
Return to Raider's Drydock
Take elevator to catwalks
Fight to Raiders' Drydock via catwalks
Kill COV attacking Lilith
Revive Lilith
Talk to Ellie