Sniper Ghost Warrior 3

Just a thing that can happen if you go for the achievement the only way you can done at the time (Physical copy only, deleting the patch, playing offline till you kill Stepan Chbaarta, then installing the 1.03 patch and kill the two remaining for the trophy)

Before arriving at Stepan (Pre patch, obvioulsy) you'll find yourself in a main mission of the second map, in which you'll have to climb a mountain and eavesdrop a conversation between the mission objctive and a most wanted of the fifteen, Boris Druganin. There is a bug (Pre patch) that will have the kill not count towards the most wanted list (You kill him and neither the medal nor the skull on the list appears). If that happens to you, reload checkpoint, leave him alive and wait till you've killed Stepan and reinstalled the patch.

(Optional) I suggest after killing Stepan, and reinstalling the patch, to continue killing the objectives on the third map, and then continue through the story, because after 2 or three missions of the act, we will be again on the second map (The mission who sends us to the labyrinth). With this mission activated, go and kill Boris Druganin, and then Darya Kuznetsov. Then proceed to the mission and in it you'll have the last target. If, like me, this is the last trophy you've to earn, you dont have to interrogate him. Kill him with prejudice and, bang, profit.

Hope it helps.

There are 16 total Most Wanted targets in the game. They are signified on the map with a crown symbol. Below is the count per map:

Mining Town: 5 (1 of which is killed during a main mission)
Village: 4 (2 of which are killed during a main mission)
Dam: 7 (3 of which are killed during main missions)

EDIT: Patch 1.03 makes getting this impossible currently. Patch 1.03 removes Most Wanted target Stepan Chbaarta at the Dam. The only way I've read to fix this so far is to start with version 1.00. This version has Stephan but is missing Dr. Darya Kuznetsov. Kill Stepan in version 1.00, then update to 1.03.
Dr. Darya Kuznetsov Is available in 1.03, but is now missing Stepan. If you kill him before you patch the game, you should still have credit for him after the patch. Otherwise you have to wait for CI Games to fix this. If you have the digital copy of the game, you're going to have to wait for them to fix this as there is no way to remove the patch.

You will also unlock the following on the way to this: