ACstats is growing up

[Bloodsport]

Then perhaps divide by the number of people using that gun. However, that would probably still highlight that the "best" players all use AR. Perhaps you could go one step further and normalise by the distribution of weapon use in all maps. So you would get something like (kills_AR/minutes_AR_use)/(total_kills_AR/total_mins_AR_use) where kills_AR would be all the kills with the AR on a particular map, minutes_AR_use would be the amount of time the AR was used on that map summed across all players, total_kills_AR is the total for all maps, and total_mins_AR_use is also summed across all maps. I haven't thought this through too carefully, but I think it should give the balances of each weapon on each map relative to the overall imbalance.

I hope that makes sense :D