Here's the mod list I tried using:
Generic Mod Enabler - v2.6.0.157
[C:\Games\Silent Hunter Wolves of the Pacific\MODS]
Webster's Better Air Patrols for v1.4 and v1.5 (1)
Websters_Selected_New_Sou.5 (1)
Real_Environment_mod
Webster's Upgraded Deck Gun for v1.5
On the read-only solution (posted by torpedobait):
I click each mod folder and un-check read-only. However, if I go back to the SH4 install folder and go back to the folder that I just un-checked as read-only, the box is re-checked.
To show you what I'm talking about
:
https://imgur.com/a/nnOJSgr
These pictures should show you what I'm going through. Again, if more details are needed, please ask.