I think the current varying sizes of magazines is a very good mechanic, how about introducing smaller 5/10/20 round magazines (exist in real life also) for the AKM and AK-74 family that would be the most common magazine sizes to find for the guns. Larger 30 round (and especially the 75 round) mag should be extremely hard to find (maybe only lootable from dynamic spawns). 10/20 round cmags should also be the mainstay for the NATO side and 15round mags for mp5 and RAK, larger magazines being very rare. This would reduce players just spraying with large mags and encourage more skillful usage of guns.