@batman242: No he still takes damage from guns, i've been killed many a time from that.
He could quickfire the REC gun at Arrow, or maybe he wont and Arrow will dodge. Black Widow could shoot him in teh mouth, or Arrow could arrow him anywhere really.
THere's just so many variables.
The other problem is taht becuase we never see Batman's abilities in a cutscene, we don't know his full capabilities or weaknesses. Technically he doesn't have any feats.
We don't know how he'd handle facing two esteemed marksmen who are also incredibly competent hand to hand specialists. the only time i remember him going up against a good marksmen is Deadshot where Batman hides the entire time. Now while Arrow and Black Widow aren't quite on Deadshot's level they aren't far from it. Close enough that having two should be more than enough.
I don't see Batman being able to defeat Black Widow and Arrow at the same time. In hand to hand sure, but Batman won't be able to defeat both while evading their guns/arrows. There's far too many variables for Batman to take a majority IMO