While it's awfully lame to be called a "game", I guess it's a good first try at Flash and Action Script.
1/5 for the game, 5/5 for the desire to learn.
I really like the game. But some little tweaks may be necessary... Like, the silencer should really silence the gun, and maybe add some accuracy; bigger enemies (or more hit detection); and the Pause menu, should REALLY pause the game (ain't working). Other than that, I really like it.