Some more guard passing from combat base. Not sure if that's a legit term or not, but whatever. Pretty much knee up in opponent's guard and your other leg posted for stability. Cross collar, knee over their thigh into side control. If they tie up your foot in "desperation" half guard, you can: A) armbar their defending arm (instead of a Brabo choke, which is more energy-intensive), B) step over, hug behind their neck and attack their leg for a kneebar, or C) step over, hug their neck and attack their foot and roll for a toe hold.
Got some good subs while rolling. Pretty much arm bars and a nice bicep crusher for when they're being too stubborn to give you an arm. I still have to continue working on sweeps from guard, but I'm making good progress.