I have one Arma 3 copy at the moment, but I read that if I want to setup 'Headless Client' I would need a second copy of the game. Is this still the case?
And if I buy a second Arma 3 license on a second Steam account - in case of a major expansion or other paid content would I need to buy the expansion on that second "headless" copy (Again) if I have it on my first copy, in order to continue to use the headless client with my dedicated server?
Also is it worth really? Do you see a major FPS increase with that if they both (headless and dedicated server) are on the same PC?