What information will the ACO contain?

The correct answer is that the ACO (Airspace Control Order) will contain information about MRR (Mission Reliability Report). The ACO is a vital document in the air operations process, as it delineates how airspace will be controlled and utilized by various forces during an operation.

This report offers specific details ensuring that all participants in the operation understand the mission parameters, including the reliability metrics of various units and aircraft involved. The MRR section helps in assessing the performance and reliability of the mission components, which is essential for planning and coordination among different air and ground assets.

Other options like AR tracks, Order of Battle, or CAP locations are important elements in air operations and situational awareness, but they do not specifically pertain to what is contained within the ACO. AR tracks refer to specific aerial refueling paths, the Order of Battle provides information on enemy forces and capabilities, and CAP (Combat Air Patrol) locations indicate where air defense activities are positioned. While these may be relevant for understanding the broader operational context, the ACO specifically focuses on the management and control of airspace and mission execution, which includes the MRR.