Buy In: Run your yapper while "mobilizing". Sorry i'm being cynical. If you are sincere- consult the posters and trainers and make some soft tissue progress, otherwise refer to the original instructions.
In 30 minutes complete as many rounds as possible of:
Run 800 meters
Row 800 meters
150 Double Unders
Post over/under on attendance/participation to comments. Name names as desired. I'm a fan of the call out but it comes across as aggro and heavy-handed from me.