Which manual provides guidance on sling load operations?

The correct choice is the Field Manual (FM) 4-20.197, which focuses specifically on sling load operations. This manual serves as a comprehensive resource, detailing the procedures, techniques, and equipment necessary for safely executing sling load missions. It covers essential topics such as the rigging of loads, safety measures, and the responsibilities of personnel involved in these operations.

Understanding the specifics of sling load operations outlined in this manual is crucial for tactical and logistical planning in various military operations. It ensures that personnel are thoroughly trained to execute these complex tasks safely and effectively, minimizing the risk of accidents and ensuring the secure transport of cargo.

Other options, while they may cover broader logistics or operational aspects, do not focus specifically on sling load missions. Thus, they wouldn't provide the targeted guidance that FM 4-20.197 does for those interested in mastering sling load techniques.