"Historian" achievement save

Here is the link to the save file:
https://drive.google.com/file/d/1EM0d6skBumLSSEe7YIFYMfAO4l3jRpBS/view?usp=sharing
Then go to:
and make a backup of your save and replace it with mine.

Before launching the game, make sure to turn off the Steam Cloud

Afterwards just launch the game and press continue campaign. You should be at the last mission of the game and on your right there should be a watch tower. The last collectable is inside that watch tower.

I have been going through this game on the hardest difficulty. If you haven't beaten it before, I have no idea if you're going to unlock the achievements or mess them up. Let me know in the comments if something happened to your achievements.