I would like to request a change in the ballistics of any projectile. with this comes the damage that can occur to objects, through body armor, helmets, generally armor, players health.
a rifle projectile becomes faster and travels with more energy the more it leaves out of barrel, up to a certain point, like half of the typically accurately used distance. therefore you have worse wounds when you are "further" away from the shooter, instead of standing directly in front of him.
a pistol ( same as submachineguns, which use pistol ammo ) projectile on the other hand looses power and speed when it leaves the barrel.
that is because these different types use different powders.
This will affect, especially, armor, body armor, helmets a lot more realistically.