You were a clone trooper the only one that went again't order 66 by saving a young jedi in training by distracting Anakin better known as lord Vader befor he could kill the child sadly you weren't able to savee all of them since you had no training in the force at all. You blasted the clones threatening senetor Organa with help from the young Jedi, with you laying cover fire the three of you managed to escape. Now having the young padawan leave your side to finish his training with master Yoda, you go off on your own and become the empires greatest threats. The empire calls you the last mistake, the rebels call you the super trooper. But you call yourself the real 501st. (takes place during star wars rebels the tv show, one of few good things Disney did with the series)