Battlestations: Pacific is getting the Carrier Battle Map Pack, on July 23rd for 800 MSP.
This will add an extra 5 achievements worth 150G
The Protector 20G
Protect both carriers as the Japanese in Escort mode on Map 12.
Northern Waves 30G
Win a large map sized Island Capture mission on Map 14.
Battleship Shutout 30G
Win 3 straight rounds without loss as the Japanese, in a battleship Duel on Map 13.
Siege of Midway 20G
Win a Siege mission on Map 11.
The Survivalist 50G
Win a Competitive match without losing your submarine on Map 12.