Use same weight for lunges and death march. Use the death march to determine that weight. Work in Chinese planks with a partner.
DBL Front Rack Reverse Lunges x 16 (steps)
Rest 60s
Death March x 20 steps
Rest 60s
Side plank raise x 10/side
Rest 60s
Chinese Plank (face up) x 30s (use boxes)
Rest 60s
4 rounds, not for time
Death March Video (please watch)