This is how i do a fresh re-install, also worked for a guy in the week, we did his install over teamspeak
Install game n patch to 1.2
Sort game settings etc to your liking
Choose new career, go through the motions of sinking sitting ducks and dock at kiel, i grab a tea while captain n officer chat etc, then don't save game as it's auto bunker saved
Exit game
Make a folder in main sh5 directory where you would normally open/install jsgme, call it 'MODS' just like jsgme will want to later on
(do not put anything in it)
Generic patch, do to suiting etc, if not 9 items something's wrong again !!
Rename your empty mods folder 'MODS' to say 'MOD'
Now copy/paste jsgme installer to main sh5 directory, same place you made that mods folder, now jsgme will make it's own 'MODS' folder
Install and run file viewer, this and patcher i make folders for each and have them in my docs folder, called 'generic patcher' and 'options viewer' so obviously it's easy to find/use them
Go through options file viewer and if decksawash etc is enabled in patcher enable all same in here
Make sure all your mods you in are properly expanded (mod name/data/etc/etc) copy n paste mods into that :'MODS' folder in main sh5 directory
Delete the origianl mods/mod folder you had
If you have a saved mep use it to install your mods, if not manually add them
Start new career which is now under control of oh2.5
You should be in mem not kiel
If anyone notices i've done sequence wrong shout out, i kinda rushing through things lol