These are the resident and visitor difficulty files for the human player in the sandbox. I have added my comments in dark red. Include file text is added in dark green. These comments are based on my own analysis of the code and my experience in working with it. I do not have any special inside information from MuckyFoot about these files, and I may in some instances be wrong.
The file peepsdifficulty00.txt consists of nothing but conditional file includes. Therefore I'm just going to present the include files. To get the difficulties desired, include one each of the visitors and resident files presented below directly in your mission. A normal values of either uses the default moods file, and does not require any included file in the mish file.
; Easy Visitors - visitors000.txt load_moods 90 set visitordifficulty 1 ;say "Visitors have been set to Easy" ; Hard Visitors - visitors002.txt load_moods 91 set visitordifficulty 2 ;say "Visitors have been set to Hard" ; Easy Residents - residents000.txt load_moods 92 set residentdifficulty 1 ;say "Residents have been set to Easy" ; Hard Residents - residents002.txt load_moods 93 set residentdifficulty 2 ;say "Residents have been set to Hard"