[Given that his concentration was on another of the monsters through the lens of his rifle, he would have been taken off guard by the attack near him-- but when Korra shouts at him, he turns to her with a surprised look that melts into a grin when he sees the creature burning down quickly.]
Yeah, sure am, all thanks to you. [He pushes himself up from the sniping position he was in, smiling at her.] When my focus's on the target, I don't notice much what goes on 'round me... seems like that ain't such a good thing, here.