Just that same RA2/YR fan, especially in turning multiplayer maps into singleplayer campaign maps. I like to work with Yuri's Revenge: CnCD2K when making them. Unfortunately, I can't work with NPatch however because of having to install a compatibility version of YR rather than the actual game, but I love working with Ares.dll if you have some mods to recommend or modding tips. Also, hello, and welcome to SteamsDev!
Preview Image for my next custom campaign The Rebel's Path YR - GR02: ONMI Research. In this campaign you are to capture the two OMNI Research centers at one of the corners of the map. This will hopefully be completed within the next week.