i was playing Splintercell Pandora tommorow on the cryogenics lab level and i just got through the door with the dude standing right across from you. (Sam is in from of the door right across from the fire) i shot him with a head shot about 4 times. So i walked over there and i walked right through him! The 2 guys in the next room were frozen and i could also walk through them! Only arter i had my fun, the glich wore off and the rest of the level features solid, gun wielding enemies.