Awesome start!
The Good
Although I feel the action is a bit rushed, it's still awesome. The beginning is really good, and I like how Deadshot kind of reveals his personality/past more, unlike other comics which make him a random paid mercenary. He actually talks about giving discounts to the father for losing his son. Also, the art is great, except for one aspect (I'll get to that later). Onomatopoeia is great in this story for such an underrated character, and I love how he rejected Joker's request to kill the police officers. The battle between Batman and Zasz was intense.
The Bad
I think the overall art is pretty good and fits the atmosphere, but I just don't like how they draw Joker, but that's just my opinion. I also feel that the action is a bit rushed.
The Verdict
A great comic, but certainly not among the best of anything like that. However, it is a good start to a great series, and readers who are interested in Onomatopoeia should pick this up since he isn't used often.