Here is the full list of all 50 Transformers: Fall of Cybertron achievements worth 1,000 gamerscore.
Capture three flags in a single CTF game during a public Multiplayer match
Complete wave 15 in Escalation (DownFall)
Unlock Prime Mode
Reach max level in all four classes
Reach max level in a single class
Return five heads at once in a headhunter game during a public Multiplayer match
Complete Chapter XIII as Megatron
Complete Campaign - Normal
Complete Campaign - Hard
Spend 100,000 credits in Escalation
Kill 6 different opposing players in a TDM game during a public Multiplayer match
Chapter IX: Destroy all images of Starscream and his Statues
Chapter VIII: Melee an enemy through the goal post
Chapter VII: Ram a jet (on the ground or in the air)
Earn MVP in any game mode during a public Multiplayer match
Spend 250,000 Energon in the Teletraan 1 store
Complete wave 15 in Escalation (Ignition)
Complete wave 15 in Escalation (Oblivion)
Collect all audio logs
Chapter XI: Hack all of the security terminals before the Decepticons can activate them
Chapter X: Kill five Autobots with a single hover slam attack
Rate all weapons, weapon upgrades, and equipment
Complete Campaign - Easy
Complete Chapter XIII as Optimus Prime
Complete Chapter XII
Chapter XII: Kill a Leaper in the air with an explosive barrel
Complete Chapter XI
Complete Chapter X
Complete Chapter IX
Fully upgrade all weapons
Purchase all weapons and perks
Collect all blueprints
Complete Chapter VIII
Complete Chapter VII
Complete wave 15 in Escalation (Ancients)
Chapter III: Take out a cluster of five Decepticons using Metroplex's Air Strike
Complete Chapter VI
Chapter VI: Destroy all of the homing mines chasing Blast Off before they self destruct
Complete Chapter V
Open fifteen Armory Recreators in Campaign or Escalation
Fully upgrade one weapon
Chapter V: Shoot a Sniper out of the air with a scoped weapon
Complete Chapter IV
Chapter IV: Sneak through the Trash Compactor Facility undetected
Personally capture all 3 nodes in a conquest game during a public Multiplayer match
Create a custom character in Multiplayer
Complete Chapter III
Complete Chapter II
Chapter II: Save two Autobots when Optimus is downed by the first Leaper
Complete Chapter I