I don't think Single Player will come for a while yet, probably not until modding is added. I do hope we get a singleplayer mission editor like in Arma, for making custom-missions, events, zombie movements, lootspawns, etc.
So, I was just looking at Senchi's twitter page when I came across these pictures. They seem to be recording some audio or something in one picture, so is it possible that they could be planning on adding a T-72 to DayZ? Or maybe another game
Notice the guy on the right has some kind of thing in his hand, perhaps for recording audio? It certainly would seem OP, but it would require a crew to use it, and ammo and fuel would probably be very rare. What do you guys think?