Say you have a units addon from addonmaker A which requires a weapon addon from addonmaker B. Keep in mind that some addons do require other addons to work properly.Īlso loading order does matter (which is from top to bottom). Enable those you need and disable those you don't need. They are disabled by default unless you enable them in here. You also might create Modfolders for specific servers if you wish. Say a addonmaker released several single addons over time, it is up to you if you prefer to have them all in separated Modfolders or you create a single Modfolder for all addons of this addonmaker. For single addons you may organize them in a way you feel comfortable. Organizing Mods is mostly not necessary as they already come organized. pbo file you've downloaded and decompressed. Inside this folder you copy now all those. Inside this folder now, you create another folder and this one has to be named addons and nothing else. If it's a A-10 addon, something like would make sense. For the rest of the name, you're free, just give it something that is meaningful. Common practice is to start with a as the Windows Explorer always orders folders and files alphabetically and therefor modfolders will always be listed on top. Here you're basically free how you name it. Simply create a folder inside the Arma 3 folder. If the Mod/Addon doesn't come with the required file/folder structure, you'll probably have one or more. Simply copy the folder into the Arma 3 directory, like in the example above. Most likely there will be other files like, they all belong together. So after decompressing you might find a folder named with a addons folder in it and in there you will find at least one file named modName.pbo. Most Mods/Addons already come with the above structure preset.
Guessing you did a default install of Steam.