Opponent standing in your guard

Last night we worked on options if an opponent stands when they’re in your guard.

First thing was to control their posture but grabbing their lapel. This is assuming that you’re still locked in with your feet in a closed guard, but they have managed to stand up.

I was also taught that when standing up in someone’s guard, you should grab both sides of their lapel, pull it down tight, and twist to get a good grip. Then, grabbing one of their sleeves (preferably the one which you will first stand up with), push that across, then stand to reduce the potential for a sweep.

All of these moves assume your opponent has just stood up in your guard.
Arm bar variant
One option is that whilst grabbing their lapel and controlling their posture, you can walk your legs further up their shoulders, one leg at a time (whilst still on their back), adjust your angle by under hooking one of their legs. Trap one of their arms and swing your leg around for an arm bar.
Arm bar variant 2
The other option is if you can’t get the arm bar due to your opponent stacking you, you can reach across to their other foot (the one that you didn’t under hook before) with the same arm, grabbing from the front. Maintain the grip with your attacking arm. You then bridge your hips and roll them, keeping your legs tight together. This ends up with them on the ground in an arm bar, they may roll, but you can still get the arm bar even if they end up face down or face up.
Omo Plata variant (from right hand POV) – this one is a bit fuzzy...
Similar set up to the above, instead of swinging your leg around and to the opposite side of their head and pinning it there, swing your left leg around and close it in a triangle around their left arm (Your right foot being in the crook of your left knee). Hip escape to the right. From there, trip them up with your right arm in the under hook on their left leg and pushing your right thigh down on their arm.  Clear their left leg out of the way, grab their belt and pull yourself into sitting position. Their arm should be trapped between your legs. Undo the triangle, lean forward, right leg on their tricep, right foot just near your left leg to get the submission. Aim to lean towards their opposite shoulder for the tap.
Some of the points are a little bit hazy as it’s a little bit more of a technical move. Hopefully we will revisit this one later. The teacher said this was more of a blue belt technique, but was just introducing it to us for future reference.

Anyways, points to remember from this lesson.
1.    Control their posture with a grip on their lapel.
2.    From someone’s guard, grab both sides of their lapel, pull down and twist inwards. Control their arm (via sleeve) that you intend to start standing up from.
3.    You can change your angle and attack from utilising your opponent’s legs
4.     If you control their posture with their lapel, you can shimmy your legs up to their shoulders for a different attack.
5.    Sweeps are also available from this position.
6.    For the Omo Plata, lean towards their opposite shoulder that you’re attacking. Pushing your thigh down against their tricep is critical to pushing your opponent into the Omo Plata position.

I actually managed to get someone during wrestling to submit to an Omo Plata! ^_^V First time ever! I’m not sure how I even set it up, but I found myself in the position for it and used point 6 to get it.
I did also try to get a D’arce Choke from side control, but failed to execute it properly...more practice required methinks!