.and dont underestimate shaolin monks there is pressure points that can kill you with one blow..
No there aren't. You can kill a man with a blow to the head or throat but there are no secret pressure points that will magically drop someone. I would expect MMA guys to do very well, even against someone like SEAL's, Green Beret's, or any kind of commando. MMA is close to real fighting and if you are a professional MMA fighter it is your job. Various commandos are obviously more dangerous because of weapons and potential experience in actually killing people but in a no weapons situation MMA guys would do fine. Throat, groin and eye strikes are going to change things somewhat but not radically.