HUNK's body reacted without actual thought. The quick, precise actions that followed had been ingrained into him for almost two decades, now.
He wasn't surprised, because HUNK wasn't a guard any more- he had fully fallen into his mindset of a solider neutralizing a target.
He grasped Nicholai's knife hand by the wrist, and then using Nicholai's forward momentum, propelled himself around the heftier Russian, painfully yanking the man's hand up behind his shoulder blade. Nearly in the same action, he bumped Nicholai, and when his body was forced to take a step in compensation, HUNK knocked out his knee before he had time to lock it properly. He laced his other arm under the Russian's other elbow, and stepped forward to savagely push the back of the man's head down, focring the man's chin to his chest effectively crippling him of movement.
The only way Ginovaef would get out of this would be to try to haul himself sideways, and HUNK had planted himself wide enough so that it would be hard for Nicholai to try.
It had been a brutal and quick take-down, something that might have warranted an amount of wariness from others had they been watching him. HUNK didn't risk changing position, giving the Russian a chance to get out. He settled for grunting, "Easy, Ginovaef. Stand down," in a tone that couldn't have carried fully to the table.
He waited, either for Ginovaef to concede and calm down, or for further orders from Spencer, either to let him stay or escort him out.