Begin with a dynamic warm-up focusing on cardio and full-body movements. Prepare for the run and calisthenics, especially since they'll be intensified by the weight vest. For the 800-meter run buy-in, start at a steady pace, conserving energy for the upcoming rounds. The weight vest will add an extra challenge, so manage your pace accordingly. In the 5 rounds, approach pull-ups with a focus on a full range of motion. Scale to band-assisted pull-ups or ring rows if needed to maintain intensity. Burpees should be steady and consistent. Focus on maintaining a rhythm, ensuring full chest contact with the ground and an explosive jump at the top. Air squats require depth and control, even with the added weight. Maintain an upright posture and a full range of motion. After completing the rounds, tackle the final 800-meter run. This will be challenging after the rounds, so focus on maintaining a consistent pace. Cool down with light cardio and stretching, paying particular attention to the legs, back, and shoulders. This workout is a test of endurance and stamina, emphasizing pacing and form, especially with the added challenge of the weight vest.