

So before i went battling the giant scorpion i sold my Sonic Emitter so i could buy upgrades for the K9000. When i got into the "room" with the scorpion i went to the terminal where i activated the Protectrons and read that the Sonic Emitter would be a good weapon against it, so i ran to the door and wanted back. Just before i left the room i saw that the Giant spider exploded, and when loading was done and i was outside it said i'd killed it.
So, my question is, has anyone an idea what happened? I Cant really believe that the Protectrons killed it...