Travel to the lower right corner of the map. Go up the hill to find a campsite. Enter the tent found there.
Easy "Master of Darkness" achievement
To get a score of at least 600 points, collect batteries (worth 10 points each) and notes (worth 20 points each).
Easy "Notetaker" Achievement
There are a total of five notes that must be collected. At the rear of the minefield on a pack. On the bridge over the river. In the railroad station on a bench. Outside on the wall of the house. In the other house, on the table near the zombie.
Easy "Trucker" Achievement
Jump in the back of the truck where the game was started.