[CB..]

being able to select your choice of side would be a major boon--

American British and especailly japanese and german aswell--
i don't think any game has given the player the opportunity to play as a japanese sub commander as yet --? it cannot be any more contraversial than playing as a german u-boat commander surely --i'd be interested to see what feelings this aroused whilst playing--
and of course it would be great to be able to play as a brit commander--(being a brit) and i think with some thought the opportunity for some sort of on-line massively multiplayer campaign would be possible if allied and axis commanders were written in---even without human DD's some sort of comparitive tonnage results could be used to calculate victory or defeat--
perhaps using a moving "front line" marked on the map that moved according to each sides results---basic and a bit cheesy but with massive multiplayer it would be reasonably satisfying