Not good.
Not a good game. Here's what I think of it:
Pros:
1. Sounds: Sounds where very nice. Nice selection.
Cons:
1. Plot: No plot whatsoever. If you would have added a small story, lets say, a sniper team taking infiltrating an enemy base or a SWAT sniper taking out a Mafia gang it would have been more interesting.
2. You could only kill the guys with head shots and a few other body part. I really recommend you add ALL parts of the body shootable.
3. The bodies didn't go the way they where supposed to. Once I shot one guy in the head, right in the middle, and he went flying to the right. Fix that up to make it look more realistic.
4. AI: AI was BAD. Take the part of where the guys are sitting at the table. I shot one of them and the other guy just stood there. I recommend that if they see the death of their partner, they do some type of action. Such as look around or take cover behind something.
That's all. Work on this more and you got a good game. Keep it up with the sounds.