The question in the subject. Is there any secret locations, caches, maybe the treasure is buried, the letter there, or even something to collect and search? ATP
There is a Christmas tree in the Dunes, right out there have a copy of the plane from part 3 of the movie. About the canned food mentioned above.
There is also a cargo container from the game Dying Light, and duck from the Hitman series. Yet all that know me.
In the mission when Hope tells where to get an improvement for the sniper rifle,you can find the truck out the Road Rage,which was ruled by Furi OSA
In the fortress jita if you put him all the piles of scrap is given an achievement Card product and a Smoking gun I personally believe that it otylka to the film Crats Money 2 Barrel
Australia
The container of Dying Ligh
Box from MGS
Lizard from Shadow of the Colossus
Huge truck simulator Rig
Gordon Freeman from Half-life
Just Cause 3
among the population there is a guy very similar to Rick from the Walking Dead, haven't you noticed?)