BURN AFTER READING: In main menu I clicked the final map and tried to go to the place, where elves ambushed me I won the fight and let the Demavend take all the elves how cruel I am... and I read the report, vala here's the achievement. (plus this I turned every stone down in this game don't miss anything.)

Then I finished game again return to main menu load your save Choose 5th map Rivia:

ONE BIG HAPPY FAMILY: Just go to your tent and create anything if you have:

1)Nilfgard Soldiers

2)NR Ballistas (I didn't have them in this save as this is just the beginning of Rivia but I got them in my last save maybe it counts)

3)Mahakam Dwarves

4)Skellige Team

achievement should be completed.

THROUGH THE FOURTH WALL: go to the Duke of Dog's family grave and head towards south east (to mouth of the first wolf from right where you heard the whistle of O'dimm) avhievement will be completed as soon as you heard the whistle dont even need to complete the puzzle.

TAX COLLECTOR: Here is the problem I couldnt have this one yet I tried to open 1 chest in Rivia but I guess we need to open all 6 of them here I'm trying right now I'll let you know the result. Edit: Got it you need to collect last 6 chest of Rivia