Nice to see a new MP AAR from you CptEasy, always a good read.
The Italian navy will never be a match for the Royal Navy, but it can do decent if played well. Looking forward to what you can achieve with it. One of the strongest Italy plays I have seen in MP has been a combination of an infantry army backed up by a huge air force, the latter is very important in FTM because of the air base rules (planes lose org on rebase). With this in mind, using CAG's from land bases can be a viable strategy for Italy, if they can afford the officers to research air launched torpedo tech and have rrom in production.
I suggest producing a lot cheap single brigades of MIL (easy on officers, which is most important) and simply putting one on every coastal province in mainland Italy. The purpose of these brigades is not to stop the enemy, but to detect landings quickly. 50 MIL brigades, or however many are needed, are quite quick and cheap to produce. No need to upgrade them or anything.