What is one of the functions of the Tactical Logistics Group (TACLOG)?

The Tactical Logistics Group (TACLOG) plays a critical role in the planning and execution of amphibious operations, particularly in terms of ensuring that troops and equipment are moved efficiently and effectively. Advising on priority landing serials is essential because it helps in determining which units or supplies should be offloaded first during an amphibious assault. This prioritization is vital for achieving mission success, ensuring that critical reinforcements and supplies reach the battlefield in a timely manner.

The other options, while related to military operations, do not specifically align with the core responsibilities of the TACLOG. Transporting infantry to combat zones, providing medical support, and operating communication systems are important functions within a military context, but they do not specifically pertain to the logistical priorities and planning which TACLOG oversees. Thus, the focus on advising on priority landing serials encapsulates the TACLOG's main function in supporting amphibious operations.