Atomic Heart features a lot of interesting puzzles to solve, but some can be more difficult than others, especially with vague directions. During the "Brave New World" mission after surviving the train crash, you will be tasked with reaching the exhibition. Before getting to the exhibition, you will need to open some terminal doors to get the hawk to land.
To get the hawk to land in Atomic Heart, go to the camera terminal located in the Volan Tower. The Volan Tower location can be seen in the map below.
After getting into the Volan Tower, access the camera pointing at the terminal door on the water. The camera you will need to access can also be seen in the map below.
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How to order the hawk to land in Atomic Heart
Once you access the camera, aim it at the terminal door and a button prompt will come up to open it. After the terminal door is opened, you can get the hawk to land, giving you access to the next area and a challenging boss fight.
For more on Atomic Heart, check out How to unlock all Polygon Testing Grounds in Atomic Heart here on Pro Game Guides.