...annnnnd I'm chillin' at home.
C'mon, really?
Batman to me is the guy that wouldn't sign off on Lex Luthor's weapons deal because "I don't like guns." in World's Finest.
Is this really that hard? Do some of you just love Nolan that much?
I just don't get how they could spend a portion of Batman Begins showing in full detail why he doesn't use guns or believe in revenge only to interject both into the new movie. Is this because of Goyer's absence? Whine all you want about his one liners, but I'm starting to think he's the one who kept Nolan from flying off the tracks last time.
You're choosing, for whatever reason, to fetishise the physical guns themselves, rather than the actual moral issue of using them to kill. Yes, Bruce Wayne threw a gun into the river in "Begins". But as Batman, he also made one thug shoot another one in the foot. Batman is against killing, that is of course central to his character. No guns may be supplementary to that, in that he's not going to run around with Uzis, but making out having guns included on the Batpod as some character-ruining, film-ruining travesty is just being melodramatic.
So yes, really, my example still stands. Because what you're complaining about, is Batman making use of a tool that he has NO INTENTION of using to kill anyone, but which might feasibly be a tool which, if he so wished, he could use to kill someone. That's essentially your problem. And so, by that logic, we must therefore add everything in Batman's arsenal which might feasibly be able to kill someone into the list of things which will destroy the movie. We must also add the Batmobile to the list, too, as, if Batman so chose, he could use it to run over people.
If Batman starts driving around the streets on the Batpod, using the guns to shoot and kill every criminal he passes, then your complaint will have the slightest bit of relevance. But until then, you're making a mountain out of a molehill.