I wanted to mention my experience with JSGME in case anyone runs into the same problem I had getting mods running in DCS World. It took me a few days to figure out what I was doing wrong. I'd installed DCS World awhile back and tried learning the Black Shark (not very successfully) and gave up on it but last month decided to give it a second try. I'm so glad I did, I'm a much better helo pilot this time around after reading up on it and putting in some practice.
I'd read this guide repeatedly as well as anything else I could find on JSGME, examined my folder structures countless times, renamed the mods "aircrafts" folder to "aircraft" wherever necessary, tested JSGME to make sure it was working and it seemed to be because the files were being changed/overwritten with the modded folders and files from JSGME. After all my checking and re-checking, none of my mods would show up in Black Shark 2 when I ran it and I had no idea why.
I finally realized that the problem was I had 2 installs of DCS World on my computer. JSGME was pointed at my
"C:\Program Files\Eagle Dynamics\DCS World "
folder but for some reason my DCS World desktop shortcut was linked to a previous install of DCS World under
"C:\Games\Eagle Dynamics\DCS World"
Even though JSGME was working perfectly by modding all the files and folders it was supposed to, my DCS World desktop shortcut was opening the wrong version of DCS World, an older install that JSGME wasn't linked to. Basically, I was modding one DCS World install with JSGME but playing another.
I changed my DCS World desktop shortcut to the proper DCS World folder (the one JSGME was pointed to and was modding) and everything worked perfectly after that.
If you've gone through all the troubleshooting tips and still can't get your mods working, check where the DCS World shortcut you start the game with is pointed to. When I got back into it last month, I did a reinstall of DCS, not realizing there was still the previous install my shortcut was linked to.
Edit: Oh yeah, and a huge thank you to Ebs for creating this thread and to all the modders out there who put the time in to create this stuff for us. These mods (terrain, cockpit, wingman AI, rudder mod, skins, shkval and HUD mods, etc) add so much to the sim. Your hard work is definitely appreciated.