While a flare of rage had mounted in Barry at Wesker's cool tone, it was quickly dampened by a chill rush of fear. His initial experience with Wesker blackmailing him into killing people that were like family to him, by threatening his actual family, gave Barry a slightly different approach to how he dealt with their former captain than the others.
Because after all- it was nothing if not implicitly clear that Albert Wesker would have let me like the commando in the corner slaughter his family without a second thought. His age gave him a different way of looking at life in general, and when faced with something as sheerly predatory as Wesker, his first instinct was to be afraid of what something with this kind of immense power could do.
Quickly followed by a wish to exterminate it as hastily as possible from the face of the earth. Abominations made Barry feel that way- Wesker felt wrong, and even though he was wary of what Wekser could do, he wanted to kill Wesker as strongly as Chris did.
Barry planted a large, solid hand on Chris's shoulder, keeping the younger man's ass firmly in his seat. He couldn't bear another death on his conscience because he had fucked up somehow. There had been enough of that already. A wash of shame went through him, and he turned his face away from Wesker and Chris, not wanting them to see his face. "We'll get 'im," he muttered at Chris, the assurance as much to himself as to the younger man.
He couldn't find words to put to Wesker- they had wound themselves around the anger and fear and lodged in his throat. His normally kind eyes had sharpened, a sheen of anger over them, jaw cording.