Are you one of those people that love bits and pieces of both the ATO and PTO? I just hit upon idea to blend the two, make the most out of SH4's functionality, and not let a little thing like history get in the the way of the fun.
Without going into details (or technicalities) of the game, what if one was to create a submarine campaign, based on a totally different war. A war that takes place in the fictional universe of Fallout (you know.. the RPG).
For those not in the loop on that, watch this: (for our purposes the period before 2077 is the area of interest)
Exploring this some more.
http://fallout.wikia.com/wiki/Timeline
http://fallout.wikia.com/wiki/United...#Pre-Great_War
http://fallout.wikia.com/wiki/China#...282066-2077.29
THAT is some fertile ground. Think about that. An invasion and occupation of alaska. Thats bound to involve some sea battles and tanker/cargo traffic to hit. A counter invasion of mainland china.
And here is free license to combine technological bits from the ATO and PTO into one unique campaign to create sea battles or ASW difficultites without the restraints of what is historically correct. I know it sounds frankeinstienish, but it might be fun.