Here is the full list of all 30 TRANSFORMERS: Devastation achievements.
Completed all chapters on any difficulty using Grimlock.
In chapter 1, on difficulty COMMANDER or greater, defeated Devastator without taking damage.
Used parrying to catch all of the following from the enemy: a drill, boulder, and missile.
Completed all Challenge Mode missions on any difficulty.
Completed half of all Challenge Mode missions on any difficulty.
Completed all chapters on any difficulty using Bumblebee.
After dodging, quickly countered with a ranged attack 100 times.
Finished the lift battle in Chapter 2 without taking damage from Insecticons.
After dodging, quickly countered with a melee attack 100 times.
Completed all chapters on any difficulty using Optimus Prime.
Completed all chapters on any difficulty using Wheeljack.
In chapter 6, on difficulty COMMANDER or greater, beat Soundwave without defeating any cassettes.
Defeated 100 enemies with Rush Attacks.
Collected half of all collectible items.
Synthesize 10 weapons.
Performed 100 successful head shots.
Completed all chapters on any difficulty.
Completed all chapters on any difficulty using Sideswipe.
Defeated 100 enemies with Vehicle/Dino Attacks.
In chapter 4, defeated Motormaster while racing him.
Used Focus 100 times.
Collected all collectible items.
Completed all chapters, earning the highest rank, on difficulty COMMANDER or greater.
In chapter 1, on difficulty COMMANDER or greater, slammed Devastator into a building 3 or more times.
In chapter 2, on difficulty COMMANDER or greater, destroyed the shielding without taking damage.
In chapter 3, on difficulty COMMANDER or greater, defeated Blitzwing without taking damage.
In chapter 4, on difficulty COMMANDER or greater, defeated Menasor without taking damage.
In chapter 5, on difficulty COMMANDER or greater, defeated Shockwave without taking damage.
In chapter 6, on difficulty COMMANDER or greater, defeated Soundwave without taking damage.
In chapter 7, on difficulty COMMANDER or greater, defeated Megatron without taking damage.