Well when I was playing soldat for about 10hours, it froze, then i noticed I couldnt shoot from my gun. So I threw it away and grabbed my knife. But I also noticed that my knife flew really fast..but it didnt hurt no one. Then when I had no weapon selected... and I pressed the fire button...I exploded and died. No one else saw the explosion but me..alll what happened to them was that they got sent in the air due to my explosion. It was wierd