BTW:
http://worldofwarships.eu/de/news/special/sse-sisters-of-fog/
Translation: the second set of Arpeggio missions have gone up for the EU server, as well as the SEA server.
On SEA, the mission set runs until the end of March and rewards you with the
Kirishima Kongou variant, as well as Iona as a commander (I'm not sure whether you get Kirishima's Mental Model as well at this stage). The four missions are pretty straight forward "deal damage" tasks, starting at 200,000 damage and increasing by 200,000 each time (not cumulative, so you will have to deal a maximum of 2,000,000 damage - hardly that difficult). There is also no Tier limit for these missions either. If you start a new account during March, all you have to do is research your first Tier V ship to get the
Kirishima ship and Iona commander - you'll get reimbursed in credits if you complete the missions too.
On EU, it's actually different this time, and there's two sets of missions lasting until the end of April.
The first is a set of four missions that alternates between damage dealing and making hits with your main guns (a high ROF ship will be best for those latter ones, obviously). The sequence is 1,000,000 damage, 2,000 hits, 2,000,000 damage and 3,000 hits (not cumulative). Your rewards for each mission will be Haruna's Mental Model,
Haruna herself, Hiei's Mental Model, and
Hiei herself in that order. Haruna's missions have a minimum requirement of Tier V, and Hiei's missions have a minimum requirement of Tier VII.
The second is a set of three missions - destroy 100 enemy ships, deal 10,000,000 damage and then get into the top 2 EXP earners in a successful battle. Minimum Tier is VII. Your reward for this is Hiei's Mental Model with
sixteen free skill points!
No news yet on what NA's next set of Arpeggio missions are.