Talk:World 1/@comment-66.171.208.194-20161206151757/@comment-61.238.69.226-20161206153815

Don't take a BB ( BBs can't attack subs), 1-5 is probably the sortie you're going to, as you said something about "attacking subs". If you have an Isuzu K2 (if not K2 you could still use it though), put it in your fleet, as it has a high ASW stat, which makes the whole process easier. As for equipment, any will do, as long as it has a high ASW stat. 对潜 is what you are looking for.

I recommend taking CLs/ a BBV with a seaplane equipped/ destroyers for 1-5. No CVLs of AVs. The equipment you'd need would begin to stack up in time, so don't worry about it. The "green plane" with the "blue sub icon" would most probably have a higher ASW stat than the other, so use it.

Tl;dr: ASW equipment and small ships are what you need