Damage
  Range Multiplier

We’re introducing a free weapon balance update that essentially gives each weapon an optimal range and thus opens up for more specialized weapon roles.

The idea has been to address the issue of different weapon categories not feeling different enough from each other. The new range-based damage multipliers mean that the range at which you use the weapon will affect the damage you deal. Every weapon will now have its own optimal range where they perform roughly like you’re used to from before this update. Some weapons will be more suitable for close range engagement, and others will be better at long range.