Complete Butterfly Guard, Vol 1: Fundamentals & the Classic Sweep

Marcelo's three cover rules (hands before feet, shoulder pointed, elbows tucked) and the sweep every other attack in the series branches from: under-hook to the bicep, push the elbow in, scoop and rotate onto the shoulder. Plus the reshoot and the two-on-one variants that live next to it.

This public BJJ flow maps techniques and transitions.