Here is the full list of all 21 Carrion achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Breach the Botanical Gardens
Relive the Second Flashback Sequence
Breach the Hazardous Waste Landfill
Gain access to 1 Containment Unit
Breach the Uranium Mines
Relive the First Flashback Sequence
Breach the Military Junkyard
Breach the BSL-4 Research Ward
Harvest your first ripe juicy head
Nourish yourself
Locked