Here is the full list of all 50 Transformers: Fall of Cybertron achievements.
Return five heads at once in a headhunter game during a public Multiplayer match
Capture three flags in a single CTF game during a public Multiplayer match
Unlock Prime Mode
Reach max level in all four classes
Personally capture all 3 nodes in1G conquest game during a public Multiplayer match
Spend 100,000 credits in Escalation
Complete wave 15 in Escalation (DownFall)
Complete wave 15 in Escalation (Ancients)
Complete wave 15 in Escalation (Oblivion)
Complete wave 15 in Escalation (Ignition)
Reach max level in a single class
Collect all audio logs
Rate all weapons, weapon upgrades, and equipment
Spend 250,000 Energon in the Teletraan 1 store
Fully upgrade all weapons
Purchase all weapons and perks
Collect all blueprints
Complete Campaign - Hard
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
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)
Chapter VI: Destroy all of the homing mines chasing Blast Off before they self destruct
Open fifteen Armory Recreators in Campaign or Escalation
Complete Chapter XIII as Megatron
Kill 6 different opposing players in a TDM game during a public Multiplayer match
Earn MVP in any game mode during a public Multiplayer match
Create a custom character in Multiplayer
Complete Chapter XIII as Optimus
Complete Campaign - Easy
Complete Campaign - Normal
Complete Chapter XII
Chapter XII: Kill a Leaper in the air with an explosive barrel
Complete Chapter XI
Complete Chapter X
Complete Chapter IX
Complete Chapter VIII
Complete Chapter VII
Fully upgrade one weapon
Complete Chapter VI
Complete Chapter V
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
Complete Chapter III
Chapter III: Take out a cluster of five Decepticons using Metroplex's Air Strike
Complete Chapter II
Chapter II: Save two Autobots when Optimus is downed by the first Leaper
Complete Chapter I