Having bought and played Battlestations Midway, I thought this game would be better; I was right.
Midway was a great game but the storyline was stupid. Pacific doesn't have a storyline and is way more exciting. Especially the IJN (Imperial Japanese Navy) Campaign. You get the classic Jap attack strategies; loads of Carriers, The Yamato and Musashi (Superbattleships), Shinyos (Suicide boats), Kamikazes, Ohkas (Jet suicide plane) and Kaitens (manned torpedoes). It makes it more exciting flying a titchy 3000lb bomb with a Jet engine and wings into a Ship!
There's also a load more plane, ship and sub types. To use some of these you have to unlock them. e.g, achieve a silver medal in 'Battle of Okinawa' to unlock Avenger with advanced weaponry.
One more thing; theres something called 'Skirmish'. You make your own battle. choose from Escort, Siege, Competitive, Duel or Island Capture. then choose a side (USA or IJN), a map, an unlock and your ready to go. the only downside of this is it doesn't save at a checkpoint like the campaign does, and it doesn't give the ships names. it just says Agano Class, Cleveland Class etc.
One last problem; you spend ages getting somewhere, e.g. an Enemy HQ, get your Ship or Plane blown apart, then have to spend ages getting to the HQ again, just to get blown apart.
Its a brilliant game, but I reccommend getting Midway first if you like stories to flow. Plus, if you get that first, you understand the US Campaign, because you know why your in the East Solomons, not at Pearl Harbor. If you buy this first, it an ace game to buy. reccommended.