Date: 2020-02-09 12:45
GM6 and M320 sniper rifle met 450rnd 12.7x108 ammo.
enjoy this abundance of ammo.
To install Sniper450rnd you should use modfolders to keep it seperate from the official game content to prevent issues.
With Arma 3 you can use different ways to set up your modfolders to use custom content you have downloaded.
Please visit the Arma 3 Mod install instructions page for more information about using custom mods and addons in Arma 3.