When I uninstalled "Terrain_harbour_flags_Mod_v1_2_1" stopped CTD´s.
Have you tested this Mod and CTD everytime ??
Thanks again mates for your help. The only way to fix and improve this game is a 'Wolfpack', and you are doing exatly that.
PS. I prefer W_Clear´s Env Mod than SH5EnvModGold (underwater color specifically)