Torchwood has a steep learning curve but so far Bucky has managed. He doesn't startle at Sylar's appearance or argue with his direction. While he might not be the most trustworthy, he hasn't left anyone on the team to die.

"Keep him safe," is all he says before he drops and rolls. Steve has to make it though this safely.

That doesn't mean Bucky moves passively, he's got a gun up and trained on the target, his other hand on one of his many knives.