And there is now a new update. Adds in 3 missions - night duel level 3 (Yamato - timed), and airbase 1 & 2. They are 3500-9000; Airbase 2 should really be more valuable than aircraft carrier 2 though as you've got 50+ planes filling the sky as they come at you - my main battleship can sink AC2 in less than 3 on the clock, but can't get close enough to hit AB2 before being sunk/disabled. The base itself is pretty weak, but I'm yet to beat it since my first attempt with my submarine ended in my getting sunk due to stupidity after the base was about to capsize. Since it starts out 40km away, it takes forever to get to engagement range in a sub. The funniest thing is that I beat AB1 with a small, <$50,000 hull PT boat armed with 4 torp-A's, 4 mk45-5's, and 6 AA guns by going really fast, shooting down as many of the aircraft as I could, avoiding the torp. planes, and then blasting the base with my torps/mk45's. Still less $/min than taking the AC2 though, so once I've got 3 stars I probably won't play it again.
The update also adds some weapons (quad 38) and gives you 5 rare metal for upgrading and opening the game. It adds a "phyzios" splash screen, enhances the shop renders across the board for all parts (and they're all the same style now, which is nice), and adds the rare-metal phalanx. I believe some of the weapons are balanced differently, but I'm not sure - the 45-5 shoots every 5 seconds now, which seems slow. Worthwhile, but doesn't address any of the problems I have - I want more involved missions (with terrain to sail around, ships to sink/avoid sinking/defend, support ships like frigates/pt boats, roles where you should have control of different ships to do well, linked missions...), better paying missions (grinding AC2 5x to get one plane/mk45-5 is a pain; there should be missions that pay that much), and better overall balance (change the current "submarines > aircraft > battleships;" the name of the game is "battleship craft," battleships should be the focus. Going too modern is going to make it into "carrier craft").