3-26. During battle drill or standard operating procedures rehearsals, commanders and staffs should rehearse battle drills they are likely to use. Within the fires warfighting function, this should include the processing of missions to create effects from the sensor to the delivery system. These should include technical rehearsals that test the ability of the unit to use their primary, alternate, contingency, and emergency means of communication to command and control assets within the fires warfighting function.