All missable achievements for DLC 4 "Blood on Crystal"

Honestly first achievements that can be done right when you arrive at the port, before you arrive to the submarine and right when you star the DLC you will have to do some platforming and boat pulling.
Just jump in the water and wait there for some seconds for the surprise achievement.

The best tip I can give you here is, to spam your Ctrl key, so that you would be able to spot all the nests threw the walls.
They are 15 in total, and if you notice that you have not blown all of them up by the time you are moving the motors back in position... GO BACK and kill them it is better to be safe than sorry.

Is the one you pick up right in the start of the Afterlife section (after the first animation).

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Can be found while going through the archive zone. You will have to drop from the moving platform to progress the story; instead, stay on the platform and reach the other side.

On the other side, you will find the figure on the railing.

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While looking for the bypass on the quarantine objective, you will come across a big red room with four big containers.

Going to its other side on the left, you will find the figure and a box with loot.

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In the recreation zone, while on the Lunch Break mission, you will come into this room.Going around the room, you will see a terminal, and continuing at the end, you will find the fourth figure.

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During the lunch break objective, while going towards the cafe right across the first save room, you will see the entrance to the bathroom.
On the second stool, right on the seat, you will find the fifth figure.

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In the first residential area, during the objective Sudden Cleanup, when you help the cool vacuum cleaner, it will give you a key for house number 2. Go inside and fight some crystal people.

Head to the top floor,
where you will find the figure on top of the desk.
Note that here you can also do the Fluffy Easter Egg achievement

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Right when you get into the second residential area,
move forward towards the big UFO-looking balloon there.
At the very back, jump into the water and get into the hole in with the 5C7 designationn, in it you will find a chest and the statue.

Note that here you can also do the Validol's Our Bro and a bit later on the Better Late Than Never achievements and the Secret meeting right after you talk with the sculpturer, I suggest you check the screenshots so you would be able to recognize the aria when you reach those points.

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Right after you speak with CHAR-les in the elevator
move past the door with the objective and you will find your statue right on top of the right box

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During the Engineered Future sequence, you will come across the garage door 19, Right when you get through it, turn right.
In the blue container on your right, you can pick up the figure.

Note that right before this section is where you can get the Terminator's Death achievement

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When you reach the beach room (very distinct...), go to the two brothers speaking next to the water, and next to them is the figure.

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When you get the core into the big room in the Step by Step mission, go towards the core until the end of the balcony and look down. Right on top of the car, you will see the statue just chilling.
In the end, you should have all the figures in your safe room, as shown below.

During the mission "life after life" where in the first residential sector close to Nastya's clone when we ask it to open the gate to the park
there is going to be a toiler as shown bellow
You will notice some cookies and nuts leading to the big hole on the left, follow them and you will see in the whole the code for the lock
Just, open the lock, get in the toilet and boom the secret room with the fluffy boi!

The objective here is straightforward. Do not kill the three depressed crystal humans. Simply talk to them after you have spoken with Validol (the boy you see below).
As for the decisions I went with the following options while talking to them.

• First Let Nastya speak.
  
• Second Let Nastya speak. (note that killing the crystals that attack you here is okay, so no panic!)
  
• Third Nora speak.

Right after you get out of the art gallery section you will have a small fight arena and right across where you fought you will see the door that you need to go threw


Note that the code can be partially seen on the drawing on the wall as well as the Jackal Head email on the terminal, as well as one terminal after you open the door on the email Rein in your Employee! (under the sculptor)

And after some trial and error we got this!

Right on top of the table you can pick up your dolphin :)
I think the achivement is referencing the Dolphins on the previous DLCs that collecting them would ad them around your TV in the save rooms

Right after Nastya opens the door for you during the Making Contact objective and you come into a big blue room you will be let into a destroyed save room.
On the other side of the door you used it there is a terminal, use it and accept both prompts and then head back on the big blue room and on the very back left side you will see door number 3
head in it and you will find the key for the door on top of the table
Head back use it on the door and when you get in the room you will get the achievement

Due to my limited time and failure to capture the screenshots the credits for the screenshots go to wolker4 https://www.youtube.com/watch?v=p5lAFXqG0jk

Just as mentioned on the Crystal Platinum section during Engineered Future sequence just freeze a robot on the platform, I did freeze the big boi yes...

But you don't have to be dum dum like me just freeze any of the robots in any section of the conveyer belt that leads to any crasher, it does not have to be the biggest robot available....