Loot Vault is an objective in the Story Mission, Footsteps of Giants in Borderlands 3
Go to Vault
Clear Maliwan camp
Defeat elite mechs
Find elevated position and destroy generator
Go to vault
Take alternate route
Kill General Traunt
Reach the temple
Clear Maliwan Forces
Activate elevator
Grab Eridian Crystal
Place Eridian Crystal
Kill Lt Preston
Pick up Eridian Crystal
Use Keyboard
Activate Temple energy
Use elevator
Clear Vault room
Activate Eridian teleporter
Wait for Typhon
Find Vault Key
Dig out Vault Key
Take Vault Key
Place Vault Key
Enter Vault
Loot Vault
Take Eridian Fabricator