Which Supermod?

[the.terrabyte.pirate]

Hi all. Apologies, probably been discussed before.

After my installation of SHIII with GWX and assorted other mods crashed on me last week, I decided to install a recently purchased copy of SHIV + U boat addon.

Are there any supermods out there for SHIV equivalent to SHIII GWX (updating or improving Traffic, skins, sinking times, gameplay, accuracy, environments etc), or should I be looking at installing smaller individual mods to update each aspect.

I'm aware of RFB, TMO and OM mods, but I'm having difficulty understanding what changes they make to the game or gameplay.

Can anyone advise of the major differences between RFB and TMO?

Does OM only affect the Uboat missions, or the US campaign as well?

Does anyone have any recommendations or advice?

Thanks,