Alpha Omega Commander Onyx Lock, outside of his combat armor. AO is essentially the SPARTIN's of the Imperial Military. Older brother to Warren Lock (Warlock). Warlock never really made a big deal about it because he wanted to be known for his own merits and not who his brother was. When he lost his brother, no one would have said no if he wanted to take Knight, Wolf, and Hunter, but he respected Major Striker and only put in a request for Knight.