A straightforward guide to completing the Vault Drills prep mission for the Diamond Casino Heist's Big Con approach.

To access the loot within the Diamond Casino's vault during The Big Con heist, you'll need a set of vault drills.

This guide explains the mandatory prep mission to acquire these essential tools.

You simply need to go to the marked location and get the vault drills. You'll face some resistance from cops because the vaults drills are in the possession of some criminals who they happen to be taking on too.

You need to take them all out (the cops and the criminals) and get the drills. There will be two drills, so having a friend is recommended. But if you're doing it solo, you can go and get the other drill after dropping the first one off at the arcade.

Successfully retrieving the vault drills means you can breach the vault doors during the heist finale. The next step is to acquire the NOOSE disguise to ensure anonymity when escaping the Diamond Casino.