The shield was up in a second and the bullets started bouncing off ot it. He should have realized that that wasn't going to work! Still, he'd had to try. He was in there somewhere and they just needed to get to him.
Natasha was on him the next second. Dragging him with her to the floor. Giving Steve a moment to think. Bucky didn't know him. He hadn't heard any recognition. But he recognized Widow. Someone with his training wouldn't have gotten distracted in the middle of a fight like that otherwise!
With Natasha holding him down, Steve stood up, moving so he was standing in front of him. "She's right. We're not." He brought his arm down so that the shield was at his side in case he needed it. He was ready to fight if he needed to, but he didn't want to. This was his friend. His partner. Someone he had thought dead but the entire time he'd been here! "We just want to talk."