Board Thread:Questions and Answers/@comment-26712478-20150726010713/@comment-24930367-20150726012146

Of course, #8 requires any six ships, it's no wonder that you fail.

...wait you really failed #9 (World 2 first expedition)? Are you sure? The Expedition page says you only need 4 ships with 1CL 2DD as a must, and you fulfilled it.

Anyway, this should be posted in Expedition page. There you can find what you need, I hope.