A series by Stew Smith has a sole focus on tactical workouts. The Tactical Fitness book uses a test that measures 12 standards of your physical capacity, such as muscle coordination, stamina, and cardiovascular endurance. Tactical Strength is the same book Stew uses for lifting in his program Heroes of Tomorrow. It has a focus on preparing you to carry heavy loads such as rucking or boat carrying and to test your abilities. Tactical Mobility gives you the tools to measure your flexibility and performance. This also enables you to learn where you need to improve based on your workouts and where you are injury prone.