The Opposing Force (OPFOR) Tactical Task List is a listing of tactical tasks that are specific to the OPFOR. OPFOR tactical organizations and individuals perform these tasks instead of the comparable tasks in the Army Universal Task List (AUTL). OPFOR organizations and individuals perform tactical tasks in order to provide challenging conditions for the execution or attempted execution of mission essential tasks by training units. The OPFOR Tactical Task List serves as the primary source for most tasks the OPFOR must perform. Exercise planners reference this list first when conducting countertask analysis. Only if the OPFOR Tactical Task List does not contain an appropriate task is one selected for the OPFOR from the AUTL.