Which of the following is NOT a function of drones in offensive engineering?

Drones serve a variety of critical roles in offensive engineering, primarily focused on gathering and analyzing information. Real-time surveillance allows for the monitoring of enemy movements and positions, providing valuable insights that inform tactical decisions. Mapping terrain is essential for understanding the geographical features of an area, which can impact mission planning and execution. Conducting reconnaissance involves using drones to gather intelligence on enemy assets and infrastructure, enhancing situational awareness.

Building structures, however, falls outside the typical functions of drones in this context. While there are advanced technologies that might allow for drones to assist in construction processes, the primary military applications of drones revolve around surveillance, reconnaissance, and data collection rather than physical construction tasks. Therefore, they do not typically engage in building structures as part of their operational capabilities in offensive engineering.