If I get a penny every time I see something primitive, someone primitive, or someone primitive doing something primitive... I would be the richest Prothean in the galaxy.
A highly-trained rebel agent is on a mission to assassinate all of the Combine administrators. He got 2 of them, and now he's about to kill the final one.
So Breen wasn't the only administrator?
Yes, the Combine decided to hire more. Sneaky bastards. :o