Broken Rooftop Garden Location (Unexpected Initiative) in ARC Raiders
The Unexpected Initiative is a quest in ARC Raiders given by Tian Wen, who asks players to help them restart a greenhouse project to improve food production. The job is to recover two specific items from the Buried City: fertilizer from the Grandioso Apartments and a Water Pump from the broken rooftop gardens at Piazza Roma. While it may look like a simple fetch quest, players will need to locate the items themselves in two PvP hot zones on Buried City.
Where to Use the Spaceport Trench Tower Key in ARC Raiders
For players who’ve received the Spaceport Trench Tower Key in ARC Raiders, here’s a guide explaining the location of the door where you can use it.
Players can collect both items in any order. Simply head to the location closest to your spawn point. Just make sure to pick up both items in one round to avoid bugging out the mission.
Fertilizer Location on Grandioso Apartments Rooftop in ARC Raiders (Unexpected Initiative)
To get the Fertilizer for the Unexpected Initiative quest in ARC Raiders, players will need to reach the Grandioso Apartments and enter through the lobby. The apartments can be found on the eastern portion of the map, and is highlighted as a medium-value loot area, so expect some Raider activity.
After entering, locate an empty elevator shaft with a zipline and take it to the second-last floor. Once you reach here, keep a lookout for Pops and Fireballs, as they’ll try to hone in on your location.
Simply turn right after exiting the zipline and take a flight of stairs to the rooftop. Right after entering the roof, players will find some pots in front of the doorway. Interact with them to get Fertilizer to complete the first objective of the Unexpected Initiative quest in ARC Raiders. Now exit the area, quietly, and head to the next location.
Water Pump Location on Piazza Roma Broken Rooftop Garden in ARC Raiders (Unexpected Initiative)
The next location on the list is the broken rooftop garden at Piazza Roma, which is a building just south of the Grandioso Apartments in ARC Raiders. The building does not have any map marker on it, so simply follow the location indicated in the image above to find the right building.
Enter the building in the Piazza Roma district and go up some flights of stairs to reach the rooftops. Since this area isn’t marked as any loot zone, there’s low chance you’ll bump into any other raiders here.
After reaching the rooftop of the building, directly turn right, and you’ll spot some bathtubs with fertilizer in them. Enter the archway of fertilizer beds to interact with the small machine at the end with tubes sticking out (marked above).
Once the interaction animation is complete, a Water Pump will drop from the machine that you can pick up to complete the second objective of the Unexpected Initiative quest in ARC Raiders. Now, simply head for a nearby metro station to safely extract from the Buried City.
Try Night Raid to Complete the Unexpected Initiative Quest (Optional)
You can easily complete the Unexpected Initiative quest normally, but it’s recommended to do it in a Night Raid. Since you’ll be visiting high-value loot locations anyway, completing the quest during a Night Raid will increase your chances of getting rare blueprints, including for Tempest AR.
While you’re searching for the Fertilizer and the Water Pump at the locations mentioned in the guide above, make sure to loot every breachable container, drawer, and cabinet. There’s a high chance one of them will contain the Tempest blueprint, which is one of the most sought-after gun blueprints in the ARC Raiders community.
If you’re in a friendly lobby, it’s best to also check out other locations nearby to increase your total net loot acquired from this match.
Even if you don’t find the Tempest, you still have a very high chance of acquiring valuable trinkets, epic crafting components, and rare weapons. While the risk of running a Night Raid will be increased, completing it will net you significantly more rewards compared to a normal quest completion.
Once you return to Speranza and manage to retrieve the Fertilizer from Grandioso Apartments and the Water Pump from the broken rooftop garden at the Piazza Roma, head to Tian Wen’s trader tab. You’ll be able to claim an IL Toro Shotgun, 40x Shotgun Ammo, and a Shotgun Choke II attachment as a reward for completing the Unexpected Initiative quest in ARC Raiders.
- Released
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October 30, 2025
- ESRB
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Teen / Violence, Blood