HSFX vs UP vs Zuti vs JGSME????

[mjfur]

I haven't followed all of the upgrade mods for IL-2 and am a bit confused.
I currently have a clean (no mod) version of 4.11.1 installed and running in Windows 7. I also have Tracker IR5 if that matters.

Do all of these mods (HSFX vs UP vs Zuti vs JGSME) work in conjunction with each other or are they different mods from different companies? Are there other mods out there that I missed?

What should or shouldn't I install? And in what order? Confused???

TIA,