3 rounds/athlete (12min/team) then switch station.
A.
1min Row
30 Push-ups
30 Hollow rocks

B.
1min Ski
30 Air squats
30 Back ext

C.
1min Assault bike
30 Box jump overs

D.
1min Run
30 KBS (US) 24/16kg
30 DU

1 machine/team. Once you finish the 1min conditioning, continue and finish the rest reps and rest the remaining time, before it's your time to go again. Scale the reps if needed, so that you have at least 45sec rest/round.