There's a special map published on PC and PS4, called 'MapSwapper', showing the following thumbnail:
On PC:
On PS4:
With the help of some tools, this special map allows you to play Xbox One, PS4 and PC maps across platforms!
Check it out at http://maps.farcry.eu/swapper.
NOTE: MapSwapper is my personal Far Cry 4 mod project, and in no way affiliated with Ubisoft