My publishing company just signed to publish a really cool 12-volume pictorial history of torpedo boats, 1585 to 1945, by Joe Hinds, and naturally it got me started thinking about PTs & MGBs in MWIF.
After reading some of this stuff, I don't think the scale objection to PT & MGB counters is insuperable ... although some small craft were deployed in most sea areas/ports, there was a tendency to deploy large fleets of them in particular areas, and they were by no means uniformly attached to capital ships. The US built ~ 620 PTs in WW2, and about 400 of them were deployed in the South & Southwest Pacific. It would be pretty reasonable to justify a counter in the Solomons and another in the Phillipines (Surigao Strait, 1944.) Similarly with the Germans -- wouldn't it be pretty fun to have an E-boat counter in the English Channel?
As to the counter values, maybe 3 antiship, 0 or 1 AA, 0 or 1 ASW, 8 or 9 damage (stealthiness good, wood construction not so), range 2, movement 5?
I think they might deserve a "superpower" or two, maybe something directed at interdicting supply -- they were hell on wheels against barges in the Solomons.
Anyway, Steve, what would happen if one added an unknown ship type to the Units CSV? would that blow up the game, or can we insert mythical BBGs, PTs, and so on? is the ship label "PT" different from the ship type in the CSV? could we just treat a PT as similar to a CL? (some, but not all PTs, came with tenders, which were roughly the same size as a CL).
Given that we have the Italian minisubs in the game, its possible ADG have already thought of - and rejected - this. I do not know much about the US in the Pacific war, but I think historically their impact - at WIF scale - in Europe was minimal (unlike the Italian mini-subs that sunk Queen Elizabeth and Valiant (in shallow harbour waters, fortunately)). I think the largest ship lost to these vessels was the cruiser Manchester during Operation Pedestal, although her sister Newcastle was also damaged in a separate encounter. The German E-boats were active in making life difficult in the English Channel - but again with no real impact at WIF scale - but when the Channel had to be cleared for D-Day and the RN and RCN got serious about a properly trained force, apart from the tragic Operation Tiger episode, they had little if any success and certainly not anything that would affect the outcome of D-Day.
Something to look at for MWIF2 maybe?