Talk:Exercises (PvP)/@comment-108.221.20.89-20141017040849

Can someone explain to me how pvp victories work? I'm steadily getting C ratings even though I sink 4 out of 6 ships of the enemy fleet and only lose 1 or 2 of mine (it's never my flagship either). I just did a PVP where I dropped 3 of the enemy ships to 1 and dropped enemy flagship to red (about 5 hp) and only suffered my Musashi getting to 25 hp and Zuikaku hitting 10 hp (my flagship was a low level kinugasa i'm leveling), but still got a C rating for the battle. Is there a hidden requirement that I'm completely missing?