Here is the complete list of unlockable achievements in Transformers: Fall of Cybertron for the Xbox 360. There are two secret achievements to unlock listed at the bottom as well.
All Hail You! (100) – Complete Campaign – Hard
Ballistic Energon Goodie (15) – Return five heads at once in a headhunter game during a public Multiplayer match
Beachcomber (25) – Collect all blueprints
Belly of the Beast (10) – Complete Chapter VII
Car Wash of Doom (15) – Chapter VI: Destroy all of the homing mines chasing Blast Off before they self destruct
Carnage in C-Major (15) – Chapter III: Take out a cluster of five Decepticons using Metroplex’s Air Strike
Cassetticon Audiophile (25) – Collect all audio logs
Chop Shop (50) – Purchase all weapons and perks
Club Con! (15) – Chapter VII: Ram a jet (on the ground or in the air)
Combaticons Combine! (10) – Complete Chapter VIII
Cut and Run (10) – Complete Chapter V
Death from Above (10) – Complete Chapter VI
Defend the Ark (10) – Complete Chapter II
Eye of the Storm (10) – Complete Chapter IV
Full Throttle Scramble Power! (15) – Earn MVP in any game mode during a public Multiplayer match
Fusilateral Quintrocombiner (15) – Chapter VIII: Melee an enemy through the goal post
Grimlock Smash (10) – Complete Chapter XII
Headmaster! (25) – Reach max level in a single class
Heavy Metal War (15) – Kill 6 different opposing players in a TDM game during a public Multiplayer match
I, Robot Master (15) – Chapter IX: Destroy all images of Starscream and his Statues
Internal Affairs! (15) – Chapter XI: Hack all of the security terminals before the Decepticons can activate them
Invisibility Spray (15) – Chapter IV: Sneak through the Trash Compactor Facility undetected
King of the Scrap Heap (100) – Reach max level in all four classes
Maccadams Old Oil House (15) – Complete wave 15 in Escalation (DownFall)
Master Builder (25) – Fully upgrade all weapons
Megatron Returns (10) – Complete Chapter IX
Metroplex Heeds the Call (10) – Complete Chapter III
Monacus Spender (25) – Spend 250,000 Energon in the Teletraan 1 store
Moonbase One (15) – Personally capture all 3 nodes in a conquest game during a public Multiplayer match
More Than Meets the Eye (50) – Complete Campaign – Normal
Octopunch Scavenger (15) – Open fifteen Armory Recreators in Campaign or Escalation
Reconfiguration Matrix (10) – Create a custom character in Multiplayer
Reconstructor (15) – Fully upgrade one weapon
Robotopossum (15) – Complete wave 15 in Escalation (Ignition)
Rust Marks (15) – Complete wave 15 in Escalation (Ancients)
Slap the Grimlock (15) – Chapter XII: Kill a Leaper in the air with an explosive barrel
Space Pirates! (15) – Complete wave 15 in Escalation (Oblivion)
Starscream’s Betrayal (10) – Complete Chapter XI
Target Master 2.0 (15) – Chapter V: Shoot a Sniper out of the air with a scoped weapon
Teletraan 1 Regular (10) – Rate all weapons, weapon upgrades, and equipment
The Battle is Far From Over! (25) – Complete Campaign – Easy
The Exodus (10) – Complete Chapter I
The Final Countdown (10) – Complete Chapter X
The Harder They Die (15) – Chapter X: Kill five Autobots with a single hover slam attack
The Last Stand (15) – Chapter II: Save two Autobots when Optimus is downed by the first Leaper
Ultimate Menasor (15) – Capture three flags in a single CTF game during a public Multiplayer match
Ultra Power Master (25) – Spend 100,000 credits in Escalation
What Prime Directives? (25) – Unlock Prime Mode
Here are the two secret achievements to unlock in the game.
Till All Are One – (Megatron) (15) – Complete Chapter XIII as Megatron
Till All Are One – (Optimus) (15) – Complete Chapter XIII as Optimus Prime