Stew Smith observed the five common mistakes troops do during PT Test Training. Fitness tests are an inevitable part of being in the military and you have a high likely chance of passing the requirements when you have prepared adequately. He said getting better at your weaknesses while maintaining your strengths requires you to do workouts that you might not be good at doing at first. Learning these will prevent you from any injury and get you ahead of the training.
Source: https://www.military.com/military-fitness/5-big-mistakes-troops-make-during-pt-test-training