Here is the full list of all 13 DayZ achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Shaved my face.
Applied bandages on other survivors thirty times.
Killed a survivor at more than three hundred meters.
Killed fifteen survivors with any melee weapon.
Killed twenty survivors or infected with a head-shot.
Ignited fire using a matchbox, a road flare and a hand drill.
Killed an infected soldier.
Cooked a steak on a stick.
Gutted a deer.
Handcuffed ten people.
Ate and drank something.
Equipped a firearm, a melee weapon and a backpack.
Killed my first infected.