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The Greasing Your Palms quest is given to you by Celeste in Arc Raiders and sends you across three different maps: Dam Battlegrounds, Spaceport, and Buried City. Each map contains a separate objective that must be completed in order to finish the quest. While the task itself isn’t overly long, it can feel a bit confusing at first, especially since you’ll need a Water Treatment Control building key to fully complete it. Thankfully, the quest provides you with this key at the start, so you won’t need to search for it beforehand.
The remaining two locations on Spaceport and Buried City can be somewhat difficult to locate if you’re unfamiliar with the maps. To make things easier, we’ve highlighted these spots in the guide and included screenshots of the exact map locations so you know precisely where to go.
Below is a step-by-step breakdown for each area you need to visit during the Greasing Your Palms quest.

Load into a raid with the Water Treatment Control building key in your inventory and head to the Water Treatment Control building on Dam Battlegrounds. The door you’re looking for is found in the central section of the structure, on the right-hand side. Here, you’ll come across a secured door that can be unlocked using the key provided by the quest.
This room is also worth visiting for the loot alone, as it contains several chests with high-tier rewards that can make the detour even more worthwhile.
Tip: You don’t actually have to use your key to open the door yourself. If another player has already unlocked it during the raid, you can simply walk inside and complete the objective without spending the key.

When you’re on Buried City, look for the building labeled Space Travel on your map. Enter the building and use the main staircase to reach the fifth floor. From there, move toward the end of the structure that faces north-west. At this section of the building, head up the stairs and you’ll eventually reach a barricaded door, which is the objective location for this part of the quest.

This area is also packed with valuable loot, including Trinkets, weapon components, and other useful items you may want to grab before extracting.

On the Spaceport map, make your way toward the Rocket Assembly point of interest. Just to the south of this location, you’ll spot two massive rocket thrusters mounted on trailers. Walk around to the back of the southernmost rocket thruster, and the objective will automatically complete. There’s no interaction required here—simply reaching the correct spot is enough to progress the quest.

Once you’ve completed all three objectives across Dam Battlegrounds, Buried City, and Spaceport, the Greasing Your Palms quest will be finished, bringing you one step closer to wrapping up Celeste’s assignments with Gamer Choice-approved efficiency.