Purpose. Marine Corps Warfighting Publication (MCWP) 3-35.1, Cold Weather Operations, will provide broad doctrine and tactics, techniques, and procedures (TTP) for commanders and staffs throughout the MAGTF. 2. Scope. This publication illustrates how the MAGTF can be organized, trained and equipped to conduct operations in the cold weather environment. It discusses the operational concepts for cold weather operations across the range of military operations. This doctrine spans planning considerations and TTP for operations at the MEF level through MEU (SOC) operations.