Back Squat:
L3: Heavy Single then 3x3 @ 85%
L1 & L2: 5 @ 65% of 90% 5 @ 75% of 90% 5+ @ 85% of 90%

L3:
21-15-9
Dumbell Push Press (50/35)
Burpees

L2:
21-15-9
Dumbell Push Press (35/20)
Burpees

L1:
21-15-9
Barbell Push Press (45/33)
Burpees