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