Awesome
The graphics were pretty cool, though the civilian types looked rather silly in my opinion. The sounds came in crystal clear and worked well for the game.
My biggest problem was that upon hitting the spacebar it loaded one bullet into the gun with absolutely no delay of any sort, so as long as you were able to press spacebar as quickly as you shoot you had, for the most part, infinite ammo. Consider an auto-load feature (i.e. you hit spacebar and you load all six bullets into the gun one by one, disabling shooting until your done reloading) or some kind of small delay to keep people from abusing this tactic. Otherwise, it's a rather solid game.