[SG4] After you start get a corn chest and head straight up the brown staircase-like thing and through the broken wall, from there if there is nobody behind you get the chest in the side of the building and continue onto the next chest round the corner on the floor, after that go into the train station and grab the chest by looking through the window as that's much quicker. Then go out onto the platform and head up the staircase to run along the wire to the chest ontop of the train. then either head back to the city to get some smaller chests round the back of the large buildings or go into the forest and grab random hidden chests.