Talk:Tutorial: FAQ/@comment-4685118-20131030003855/@comment-5140815-20131030120526

Sonar improves your fleet's overall accuracy and evasion (not sure on the eva) not just sub torps but also in the shelling.

Depends on your depth charge. A 1star depth charge just adds +4 AOL. Check your ship's AOL stat. That's the anti-sub stat.