This was quite fun, machine gun especially :p Sniper seems garbage though. Didn't quite get the point of the stats page. The frequency of weapon drops seems a bit too random; sometimes I would be swimming in weapons straight away, other plays it took ages to get any. It would have been nice to feel like there was an endpoint I guess? Or at least a scoreboard.
I didn't get the relationship to the theme at all.
Beautiful graphics, some sound would have been nice :-)