i gave a 10 but
only because this is one of the best flash games i've ever played..
...not because it's perfect.
aiming system is a little flawed- it's sometimes hard to determine where you are aiming/hitting... but maybe you did that on purpose. that's not too bad
the only REAL complaint about the game is the issues with the relaod times of certain guns.. which i'm sure you've heard about already. the machine guns decide to allow you to waste ammo and fire the weapon... without actually hitting anything, even once the animation is done. other weapons, such as the sawed-off allow you to fire BOTH barrels once the character has only touched the gun with the FIRST cartridge.
all in all though..... WOW. congrats. amazing effin game.