Sorry, I didn't manage to find much with searching the forum, I know there's a post somewhere about statistics on the servers used to help balance the weapons... But I couldn't find it.
Anyway. The only statistics I did find were either on a per-player basis, and were things like player kills/deaths/stuff, or were on a per-server basis, things like ping/maps/times/stuff.
What I was wondering, was if there is a database of statistics on a per-gun basis, such as total damage dealt of each gun, average accuracy of each gun, total kills, etc.
tf2 did something similar to this, it's on they're website here. Well, they do have damage dealt per weapon (expressed as a percentage of all damage dealt), and average damage per hit with each weapon, average damage distance, etc.
All expressed on neat little graphs...
Anyway, I was thinking something like that could be helpful for the devs for balancing weapons. And I'd be interested in reading it just as a player.