Run speed and footstep loudness should possibly be impacted by the amount of weight carried. For example, a player carrying 3 or 4 ammo boxes with nearly a thousand rounds should not be able to sprint full speed. The above change might add additional things for people to consider when trying to escape other players. Imagine if you're a sniper with a thousand rounds of ammo, and see a player with a M4 approaching up your hill. You can either stand your ground with lots of ammo, escape slowly with your ammo, or drop a few hundred rounds and sprint away quickly.