[quote=@The Kid Lantern]
There's actually a female Nightwing-ish alias used by Harper Row you could refit. [b][url=http://www.comicvine.com/bluebird/4005-83111/]She goes by Bluebird now...[/url][/b]

She obviously uses guns, the wiki had this to say about her...

[b][i]"A young Gotham City electrical engineer who wants to assist Batman in repayment for protecting her brother and her from an assault, much to Batman's frustration."[/i][/b]

~KL~
[/quote]

I suppose. The problem is that I don't know anything about her. It would be hard to put myself in her shoes, or to write any kind of backstory or personality profile for her.

Ideally, I'd like to do Gunrat, with any changes needed to make her fit into the DC universe, or to substitute for a character like Bluebird or Jason Todd in the canon. My second option, if not already taken, would be Raven. I find her to be a very interesting character, and I'm familiar enough with her story (at least as far as it's fleshed out on Teen Titans).