Closed Guard Elbow Control (The Grapple Lab)
The Grapple Lab. Inside or outside the elbows against a stand-up, then sweep from chest to chest or go outside, then take the back or sweep from outside the elbows.
You're on rung 1. Rung 1 is the won position. Climb down in order.
Adapted from the original page. Phase ladders. Finish-first: rung one is the won position.