That's interesting! I never realized that in almost all mediums he was rebuilt by beings outside his main group. I wonder if the toy storyline explained his upgrade source. Did he ever have a bio in the comics, attached at the end? Negative, much? Besides, I don't see any confusion. ...well, other than your post. Hey, cool! I never realized that was the 1st full-on Autobot/Decepticon battle at Autobot City after the movie!