Board Thread:Event Community Discussion/@comment-35432418-20170810052100/@comment-24099148-20170810053817

If you're doing easy mode, then you're safe from the ship locking. Yamakaze is available on the first map and Hatakaze will be a reward for the 2nd map so you will be able to get your wish.

Remember not recklessly charge into the event without knowing what kind of enemy will be there. The first three maps are fairly easy so you'll be fine if you prepared your ship girls way ahead and stockpiles your resources.