Data Corruption (Burn down 7 posters)
All of the posters for this challenge are all around the copper mill. To destroy them, throw a molotov at them, or shoot an arrow. The posters have been marked D1 - D7, on the map.
Past the gate, after you climb the railway car and jump over to the next one on your left, before you climb the ladder. The poster is on the wall, above the cupboard.
After you climb to the upper part of the mill (near the tomb entrance) before you climb up the stairs into the next building, find the passage on the right, covered with a cloth.
Burn the cloth and climb up. You find the poster in a small room, on the wall.
In the upper part of the room, you can get here from the copper mill, or climb up and cling to the edge with the hatchet, with the rope coil on you (you receive it later into the game, but you can always come back here).
After you climb the stairs into the next building, in the upper part of the copper mill, walk around stairs up - you find the poster a bit past the stairs, on the left (look up, above the passage).
Before you climb the ladder, after which you need to hang on the rope and swing to jump to the other side. While in front of the ladder, jump right.
In the spot, where you need to hung down on the rope and swing to jump to the other side. The poster is on the building wall, on the right (hanging under the window).
On the back of one of the machines, while you are climbing up, where there are white patches of cloth hanging on barriers.