Braulio teaches the same strategy he did in part 1 of using the knee staple to aid in passing the open guard. However, this time, after he pins the leg, his opponent makes a grip on his sleeve so he can't swing his arm over and longstep. He counters this with a grip of his own on their pants and continues pressing forward to side control using a variation of the over under pass.
Links to other Parts:
Part 2