Thank you for the wellcome!
I did it!!! I unistalled everything yesterday and i´ve reinstalled sh5 with the wos megamod and then i activated the pach following the official instructions.
Everything looks grate. I just ´ve the following issues.
1- After sinking task force on the first mission (baltic) the date is 0000000 for one of the warships an a crazy nonsense number for the other one. I assume this is not a big issue as now there is no tonnage bar to fill and in my log the 2 ships tonnage is registered ok. ( I followed mama solutions but this happened)
2- I need to confirm this one, but magnetic detonator is not working still for me. I set up my fish 1.5 m under the keel and it just didnt detonate. I checked and the shoot was very much precise.

I´ll keep trying