Search for Tian Wen's cache near the Warehouses

How do you complete "Search for Tian Wen's cache near the Warehouses"?

This is step 2 of 3 in Marked for Death, given by Tianwen. It is completed on Buried City. The exact location is marked on the Buried City map.

• Marked for Death
• Buried City

What are the other objectives in Marked for Death?

Marked for Death has 3 objectives in total: Reach the Su Durante Warehouses in the Outskirts in Buried City, Search for Tian Wen's cache near the Warehouses and Follow the clues.