The Re2005 and G.55 are both pretty and capable machines, and would be quite suitable to the MA environment. However that is all that they would be suitable for. I can think of few aircraft less useful from a historical scenario point of view than those two.
The C.205 was produced in much larger quantites than either the Re2005 or G.55, and yet the C.205 still has little more than half the production numbers of the N1K2-J, which is much maligned due to it's low production numbers.
From the perspective of scenarios the Italian aircraft we need are things like the C.200, Re2000, Re2002, CR.42, S.M.79-II, and Cant Z.1007. However all of those have practically no purpose in the MA and would see little usage.
All of this is complicated by what performance data HTC has available for all of these aircraft. This is something we can only guess at.