I'm not voting this low because it is short, but because it looks like you haven't put any effort in it!
-The enter screen where the guy gets shot looks crappy and you putted the stop on the wrong place within this tween.
-When you check the computer you have made a screenshot from your own pc and you still have Flash open??? what sniper or assassin has FLASH open!? Just take some time and draw the screen yourself.
-Put some music on it to create a creepy atmosphere or something.
anyway if you make a sequel "please" create a different story? The idea with a hitman and a agency has been used like 1000 times.
Hope to see our next game anyway and see the improvements.