Here is the full list of all 43 Far Cry 3 Classic Edition achievements worth 1,000 gamerscore.
Activate 9 radio towers.
Spend $5000 at the shop.
Rescue Liza from the burning building.
Complete a WANTED Dead quest.
Tag 25 enemies using the camera.
Unlock 50 entries in the Survival Guide.
Hunt and skin a rare animal.
Liberate 3 outposts.
Liberate an outpost without triggering an alarm.
Return to the doctor with the cave mushrooms.
Earn 5 skill tattoos.
Craft 5 upgrades for your equipment.
Complete a Supply Drop quest.
Lure and kill a predator.
Complete a Path of the Hunter quest.
Escape the pirates and survive in the wilderness.
Complete the Rakyat initiation.
Rescue Oliver from the pirates.
Rescue Keith from Buck.
Survive the encounter with Vaas and escape.
Kill Vaas.
Use your wingsuit to reach the Southern island.
Complete Riley's interrogation.
Kill Hoyt.
Attend the final ceremony.
Freefall more than 100m and live.
Earn every tattoo by learning all the skills.
Buy all attachments and paint jobs for one weapon.
Liberate all outposts.
Gather a total of 60 relics.
Gather all "Letters of the Lost".
Gather all the memory cards.
Win $1500 playing poker.
Craft 25 syringes.
Craft a special syringe.
Find the lost Hollywood star.
Kill 50 enemies with the flamethrower.
Kill 4 enemies simultaneously with one explosion.
Fully distract 25 enemies with rocks.
Dive more than 60m.
Kill an enemy with a takedown from above from a glider, zipline or parachute.
Kill an enemy with the Repair Tool.
Kill a target from 70m or more with the bow.