In GTA Online, 'Duggan' often refers to the 'Duggan Shipments' prep mission for the Casino Heist. Completing these shipments is crucial for a successful heist, as they can affect the payout and difficulty.

Duggan Shipments are a preparatory mission that, when completed, can provide advantages during the Casino Heist, such as better payouts or easier access to certain objectives.

Level 2 cards are a type of target during the Casino Heist's hacking mini-game. Completing the 'Level 2 Cards' prep mission makes these targets appear, simplifying the hacking process for players.

The Duggan Shipments prep mission is typically initiated from your Arcade business's planning screen when setting up the Casino Heist. You'll need to purchase the heist itself first.

Yes, most players find it highly beneficial to complete Duggan Shipments. They can lead to a higher take and a smoother overall heist experience, even if you're splitting the earnings.

While approaches vary, completing Duggan Shipments is recommended for all of them. It's often advised to do the Level 2 cards prep as well for easier hacking.

You can technically skip Duggan Shipments, but it's strongly discouraged by the community as it significantly impacts your potential earnings and heist efficiency.

There are typically multiple Duggan Shipments that need to be completed as part of the Casino Heist setup. Each one contributes to the overall advantage gained.

If you don't complete the Duggan Shipments, you'll likely face a lower payout from the Casino Heist and potentially more challenging security measures during the heist itself.

The Duggan Shipments mission usually involves destroying specific targets. Having a fast vehicle and being prepared for potential resistance from NPCs is key.