I said this on the Discord, but I'll repeat it here for the sake of organization:
[hr][code]You are free to roam however you like during the mission. So, make up whatever route you want.

As far as geographic details go, you don't need to have pin point accuracy regarding the lay of the land of Western Kyoto, just consider that the mission area is more or less a 10 miles radius circle around the helipad, which gives a decent mix of urban ruins, and forest-covered mountains in the vicinity of Mount Atago.[/code][hr]