Here is the full list of all 45 Predator: Hunting Grounds achievements worth 1,000 gamerscore.
As the Predator, gather a total of 100 full trophies from Fireteam bodies (Long Claims)
As the Predator, Successfully Arm and Detonate your self destruct mechanism
As a Fireteam member, work with your team to kill a Predator
As a Fireteam member, get 1000 head shots on AI enemies
As the Predator, claim 100 Fireteam member trophies (Any Claims)
As the Predator, claim 500 Fireteam member trophies (Any Claims)
As the Predator, claim 1000 Fireteam member trophies (Any Claims)
As the Predator, heal yourself when the Fireteam is within 50m of you
Wound a Predator so it leaves a green blood trail
As the Predator, Kill an entire Fireteam with just your wrist blades
Successfully secure 25 Predator bodies for the OWLF
As a Fireteam member, cover yourself in Mud completely 50 times
Play 100 Quick play matches as a Fireteam member
As the Predator, Trap 50 Fireteam members in bear traps
As a Fireteam member, Revive teammates 100 times
As the Predator, leap and hit all 4 Fireteam members with a single leap attack
As the Predator, knock down a Fireteam member while your energy is overloaded
As a Fireteam member, complete 100 missions with successful Exfils
As a Fireteam member, successfully Exfil with the entire team alive after completing a mission
As a Fireteam member, successfully defuse a dead Predator's self destruct mechanism
As a Fireteam member, free a teammate from a Predator's net
As a Predator, trap 50 Fireteam members with the Net Gun
As a Fireteam member, unleash Mini Gun mayhem until completely depleting ammunition
As the Predator, hit a Fireteam member with a combistick throw over 100m
Complete the tutorial level
Play 50 matches as the Predator
As the Predator, Travel a total of 100 KM in the trees
As the Predator, perform a finisher on a wounded fireteam member
As a Fireteam member, find an OWLF tape
Kill 50 wild boars
As a Fireteam member, take down a PMC heavy soldier by yourself
Destroy 250 Explosive Barrels
As a Fireteam member, Reinforce your entire team back into the match
As a Fireteam member, escape as the sole survivor
As the Predator, kill 500 AI Soldiers
Reach Player Level 25
Reach Player level 50
Reach Player level 100
Kill 5 AI with a single explosion
As the Predator, have your mask destroyed by the Fireteam, but still kill them all
As the Predator, kill the entire Fireteam before they complete their main mission
As a Fireteam member, knock off the Predator's Helmet
As the Predator, hit more than 1 Fireteam Member in a single smart disc throw
As a Fireteam member, shoot down 100 Tree cover branches
As the Predator, kill the entire Fireteam while they are waiting for the exfiltration chopper