Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
|Achievement||How to unlock|
|A Taste for the Game(20)||You completed 10 challenges|
|Blood Money(20)||You completed the Contract Basics Tutorial|
|Competitive Spirit(20)||You created a contract competition|
|Contender(20)||You participated in a contract competition|
|Damage Control(20)||You contained a situation gone bad|
|First Contract(20)||You completed the Creating Contracts Tutorial|
|Inconspicuous(20)||You remained undetected throughout a checkpoint|
|One of the Guys(20)||You blended in and fooled someone|
|One With the Shadows(20)||You escaped the attention of an enemy|
|Partners in Crime(20)||You played a contract made by a friend|
|Rocksteady(20)||You executed a point shooting with at least 3 kills|
|Sandman(20)||You subdued a person|
|Self-improvement(20)||You bought an upgrade for a weapon|
|Set for Life(20)||You earned 1 million contracts dollars|
|Silent Assassin(20)||You achieved Silent Assassin|
|The Russian Hare(20)||You performed 47 headshots using a sniper rifle|
|Thumbs Up(20)||You liked a contract|
|True Potential(20)||You unlocked a technique|
|Under Wraps(20)||You hid a body|
|Whoops(20)||You made a kill look like an accident|
|Information is Power(30)||You collected all evidence|
|Jack of All Trades(30)||You collected all 20 play styles|
|Absolution(50)||You completed Hitman: Absolution™ as a professional|
|It's All in the Wrist(50)||You successfully performed a lethal throw|
|Reach for the Stars(50)||You completed 50 challenges|
|Grand Master(150)||You completed 100 challenges|
During the "Shaving Lenny - Streets of hope" mission, eliminate the first two targets and then return to the door that was locked. Unlock the door, then in the new area walk straight until you reach a dog cage with two dogs in the middle of some very frisky business.
During the "End of the Road - Desert" mission you'll be alone with Lenny in the desert to deal with him in whatever manner you choose, but if you don't feel like getting your hands dirty there is another way to handle him. Look for five vultures throughout the level and shoot all of them down. Shortly afterward an unexpected visitor will come out of nowhere to help complete your task for you, but keep your distance if you don't want to become roadkill yourself!
The two playable characters from Kane & Lynch make appearances in this game, one during "Welcome to Hope - Great Balls of Fire" mission which is hard to miss; head into the bar to find Kane standing about. You can even drag him into a barfight if you want to get physical with the patrons here.
You can spot Kane again during the "Holding Cells - Skurky's Law" mission. Head into the sub-basement to the enter the vent. While you're making your way through the vent, peek through the grate.
Lynch can be found in the outdoor gun range during "Birdie's Gift - Gun Shop" mission.
Another cameo is less obvious to find. During the "Dexter Industries - Factory Compound" mission, you'll eventually be in the Enter Industries building. Look for a nuke hanging from the ceiling here and shoot its very tip. This will trigger the hidden "Atomic Suntan" Game Over cutscene featuring Kane and Lynch; be sure to save your progress before trying this!
During the "Rosewood - Orphanage Halls" mission, look throughout the level for figurines depicting characters from Mini Ninjas, another game that was produced by IO Interactive.
Found in the mission Dexter Industries, you will do the mission like normal until you get to a doorway with two guards sitting there. You will need a guard disguise and a minimal amount of instinct. Like you may have guessed you can just sneak right past them. Once inside there will be a lobby with a bomb hanging from the ceiling. Shoot the tip of it and you will see a man and woman laying on the beach in front of a nuclear
Shoot the items on the bench, next to the pool and on top of the bear in Sniper Challenge to get a stripper to appear in a window of the building.