Hmmm. Well, it would appear to me UA:D should be more towards some realism as opposed to pure arcade. We already have a more arcade version in another now, cough*, cough*, farce of an entry well known to most of us.
Also, TY for the classes that can be played. Here, I would suggest, maybe, a few more such as;
cv/ce = Corvette (the smaller than DD but bigger than TB naval ship class) or some such traditional name. A convoy escort type ship. I'm not sure Cargo/Transport ships should have any kind of ability to be well armed even with small calibre guns.
ML = Mine Layer. Surely, a game of this type should have 'mines'
ACC/CV = Aircraft Carrier. These have to be and should be included, eventually. We could also see the early other nations aircraft carriers still not represented in that well known 'alternate' arcade naval game.
SS = Submarine. SS, short for 'surface/subsurface ship'. It would, again, be interesting to see the early development of Submarines rather than whatever it is that the well known 'alternate' arcade naval game is going to try to shill/shove.
PS: Are we allowed to mention, by name or by abbreviation, that well known 'alternate' (now farce) game?