Bucky was honestly good with whatever plan they wanted to use but then Natasha's data ping came in. He wasn't so willing to debate anymore and took off towards the objective like a bionic bat out of hell. It wasn't like the other three couldn't keep up with him but he was betting that Barton was going to be the rotten egg.
A language barrier was irrelevant, everybody understood the universal language of gunshot wounds to the leg which is exactly where he shot the first two of Zola's men that he saw before moving in. Slap dash security meant these were men not loyal to HYDRA and ergo not willing to die in a suicidal blaze of glory.
If Zola laid one hand on her Bucky would take great pleasure torturing him and dismantling him for spare parts. Maybe he'd make a toaster out of that bastard's computer screen face! If today wasn't Natasha's lucky day it was nobody's lucky day at all...