Final answer:
Soren attached an unspecified device to a landing strut of the quadcopter, which could be any of several common attachments like cameras or sensors, depending on the context of the scenario or case study.
Step-by-step explanation:
The question seems to be part of a scenario or a case study related to the application of quadcopters in either a real-world or a fictional context. Soren attached an unspecified device to a landing strut of the quadcopter, which could be any of several common attachments like cameras or sensors, depending on the context of the scenario or case study. The specific attachment Soren added to one of the landing struts of the quadcopter is not specified in the question.
If this is part of a larger discussion or lesson within your studies, it could refer to any number of devices or sensors that are commonly used to upgrade or customize quadcopters for various purposes. These include cameras for aerial photography, sensors for scientific data collection, or perhaps even delivery mechanisms if the quadcopter is being used to transport small items.