Yup. Definitely a cocky bastard.

She continued her forward movement, passing by a large pillar to her left, and kept the smirk on her face. "Oh, shiny and me go back a long ways, Sugah." He was less than ten feet away by this point, and still hasn't started shooting at her. That was a good sign, right? 

Unless of course that hand behind his back was hiding some dastardly attack that he was waiting to unleash until she was too close to avoid it. Like a grenade. Or some sort of energy blast. Maybe he was a new model of sentinel. She wouldn't really be surprised if that were the case. Trask was always coming up with some new way to torment mutant kind.