Find Tian Wen's weapon cache near the Gas Station in the Outskirts

How do you complete "Find Tian Wen's weapon cache near the Gas Station in the Outskirts"?

This is step 1 of 3 in Industrial Espionage, given by Tianwen. It is completed on Buried City. The exact location is marked on the Buried City map.

• Industrial Espionage
• Buried City

What are the other objectives in Industrial Espionage?

Industrial Espionage has 3 objectives in total: Find Tian Wen's weapon cache near the Gas Station in the Outskirts, Deliver the Burletta to the rival weapon cache and Plant a bug on the weapon cache.