One thing I noticed was that the Fumo30 radar in the Type 7s 'float' above the conning tower for me, and it is a solid object, as I learned when going under a boat

. Also, it seems in starting the 1941 campaign start date with the Type 2D that my first mission is a recon mission to Fremantle.
As an aside, which I don't know if something can be done with it or not, is that the 30th Flotilla 'ends' (historically I presume) in September 1944, so when missions start in that flotilla after that, I start in a hostile port of Costanza.
Unfortunately I am not in front of my home computer, otherwise I would double check all of these. Oh, and I also get a 'no decoys' when attempting to use them regardless of what is seen prior to starting missions, also in the Type 7.
I'm running TM+RSRDC+OMv4, if that's relevant. And excellent work, by the way. I'm enjoying every bit of it in SH4.