After rescuing Vaughn from the “Friends Like These” mission, you will unlock Vaughn’s Adventure feature.

Vaugh will offer you his support by venturing outside the ship to look for extra XP, Cash, and Legendary Chest. You can check back regularly every 10 minutes, and the timer will reset once you have collected the rewards.

You can also check back Vaughn’s Adventure after 18 hours to collect the Legendary Chest! The timer will reset once you have collected the Legendary Chest.

 
You can access Vaughn’s Adventure via its designated button at the top-right side of the screen.

Don’t forget to check this feature from time to time to claim more XP and Cash.

Note: The amount of Cash and XP that you can collect increases as your level goes up.