Yes, and I absolutely love it. I've been using TrackIR for years in flightsims and Arma2/Dayz is the first sim/game that I've used TrackIR as infantry. It's indispensable IMO in DayZ and almost feels like a cheat on servers that allow 3 person view. Not surprising a lot here haven't heard of it as it's primarily intended for flightsims but it works just as great in DayZ. Like someone else said, once you get used to it you can never go back . . . just like going black.