What type of facility contains a tailored portion of a field army headquarters for operational control?

The correct choice reflects the role of an Operational Command Post, which is specifically designed to provide a streamlined and flexible segment of a larger field army headquarters. This facility serves as a vital link for operational control, enabling commanders to execute plans and adapt to dynamic battlefield conditions.

The Operational Command Post is equipped to handle tactical operations, coordination, and situational awareness, ensuring that commanders can make informed decisions in real-time. This setup is crucial for the command and control of forces in the field, allowing for effective management of resources and personnel during combat operations or other missions.

In contrast to other options, the Administrative Command Center primarily focuses on administrative functions rather than direct operational control. A Logistical Support Unit primarily concerns itself with supply and sustainment tasks, while a Tactical Operations Center, although similar, is typically more focused on immediate tactical operations rather than the broader operational control provided by the Operational Command Post.