Casper, can you go to the "news" link at the top of the page.
Go ahead and follow the links and subscript to the steam mods in the collections I made.
Our NQDY_ModSet with Arma3Sync will become obsolete in the very near future.
I can show you how to still use Arma3Sync as our mod launcher.
Hit me up with a pm and I can give you a hand if you like