Installation
To locate map after subscribing, then its heading to steam library folder and in there its steamapps/workshop/content/400750/ then check "date modified" to the right of all folders, and you should see your latest subscription with the date marked and find the japanese map. In chosen folder then double clicking mod.info file will tell you if right file? Then its copying folder and head to where your main Gates of Hell folder is, and in there its resource folder,so open that and then in map folder paste in your "copied folder" and call it something like japanese map, then open GEM editor and press esc (or hover to top right) and look for load and in there you should see japanese map and off yeh go, enjoy.