Why is ammo so generalized in game? i.e. many weapons use the same caliber, when they shouldn't. Examples would be the p92 using the same rounds as the VSS (9x19 vs 9x39), or all of the 7.62 weapons using the same ammo despite some being 7.62x39 and others being 7.62x51, and still others being 7.62x54r.