Escaping the half guard

Last night in MMA we went over escaping the half guard, pretty boring night with a lot of new guys and only a couple of guys who have been going there for awhile. So when we rolled the news guys rolled together and I rolled with one of the guys who had been coming there for weeks. We rolled with the same guy for about 15 minutes. I caught him in two guillotines and he got me in something that i've never seen before but it hurt. It was overall a pretty normal night. Friday night is the two hour MMA class thats the fun one. I'll try to find a video of the half guard escape we used later.