AKyemeni is right, but that is about the single player area of Dry Docks (the name of the multiplayer map in the picture). Naughty Dog probably finished the MP map but remove it since the area wasn't in the SP. Which doesn't really make sense since I don't remember Facility being frozen over or Flooded Ruins being full of lava in UDF.
But, common sense isn't apart of ND's decisions, so, not really surprising.
I'm sure ND thought it was too balanced. This is probably how the conversation went down: "Hey how are we coming along on that new map?" "Aw I got rid of it. I felt like it was too balanced. No camping areas." "No camping areas? What are you thinking? I'm glad you got rid of it." "What about the fans? They have already seen a picture of this map." "Oh, just don't bring it up. I'm sure they'll forget about it ." "Okay. Sounds good."
Naughtydog, you must bring back Charlie Cutter in Uncharted 4.