Establish a 1RM Back Squat
12 Minute AMRAP - Couplet
30 Double Unders
15 Kettlebell Swings
If you do not have a rope, it is now time for you to get one that fits you.
You can buy one from Felix for $25, or pick one up from Rogue Fitness for about the same price.
If you do not have a rope, and have not picked one up yet, you can substitute 1 burpee for every 5 double-unders.