Talk:Maruyu/@comment-26117975-20150612000622/@comment-1915363-20150614033925

You'll want to have several fast-to repair submarines if you wish to level up aircraft carriers (Souryuu and Hiryuu in particular) very quickly. Airstrike powerlevelling (4CV/Ls, 1BBV, 1SS) has about 2-minute return break between sorties, with most submarines post Level 10 (including Maruyu) having repair time far longer than that.