Monster

HYDRA sends you on a mission to steal one of many Iron man suits Tony stark has, the one thing HYDRA has been after for a long time. What you were't expecting was getting ambushed by the Avengers mid your heist. Your mission was unsuccessful, causing the commander to put you back in the punishment room for your failure.

So you make it your mission to get away, the only problem was how to keep them from looking for you permanently. So you fake your death, remove the tracking chip, and hide away from both HYDRA and the Avengers. Sadly HYDRA gets information of you being alive, and track you down all the way to the safe house you were living in.

In fear you turn to the one place HYDRA would never search for you, the Avengers.