It's nice, in my opinion.
I liked your OPS: Escape (I think that was the name) maybe better, but that's just saying on the first level as that game wouldn't load past that.
But anyways! I really love how it looks and love the small grain you got going on in the screen. It looks stylistic. The visuals are really good, only gripe is that I can see the bottom of the skybox when I push myself against the windows, but no, I'm not taking any points away from that
The gameplay, was ok. I appreciate the occasional shooter here, especially when it has tactical parts and even some parkour (it is a Bugsy game in the end so..). There was a good attempt at stealth, even though the enemies didn't quite go all out with your idea, but when it works, it works fairly well. I just wish it worked consistently throughout the game. I especially want to mention the part where the woman starts shooting at me, I kill here and 2 henchmen walk up to where she died and don't even take an effort at shooting at me, even though I'm firing straight at them.
The action parts are what I think the best parts of the game. I like the first real shootout when you fire through the windows and then have to jump through the window to proceed. That was really well executed and made me wish the game had more moments like this. The rooftop shootout was also really well done, but felt underwhelming after the first one which I found very good. It's still spectacular though, and it gives me an adrenaline rush running on the rooftops (you know, as much as a game normally can).
The voice acting was good, you sounded like you fit the part, it just sounded like you could have given more. Who was the one acting in Fenix OPS, he sounded awesome, maybe you could do more work with him, so that both of you have roles in a game. The music department on the other hand, was great I think. Nothing to complaint about here.
The story was good for what it was. It's a simple "do your mission" assassination story. Pretty straight forward, not any real twists, but it did it's job.
I say it was a quite fun experience, it had it's flaws, especially in the stealth department. I think you've done better in terms of gameplay before, but this still isn't bad and quite refreshing after all the horror games and zombie shooters around here (and I'm not putting anyone down, hell I'm doing a zombie shooter at the moment and it wouldn't be the first or the last time I do so

). And I'm waiting forward for what you come up with next! Keep it up!