Thread:Dragonjet/@comment-26038543-20150126064835/@comment-203.160.176.114-20150126081057

1. 100 max ship girls (without expansion)

2. regardless of equipment on your DD/CLs, they will hit enemy subs. Equipping sonars and depth charges increases the anti submarine warfare stats (ASW) and damage dealt to subs.

3 and 4.) refer to this and search "Using the Factory": http://kancolle.wikia.com/wiki/Tutorial:_How_to_Play

It is best to scrap a ship when you have duplicate ships and do not need them for modernization. There's also a daily quest of scrapping two ships that will give 50 bauxite and a bucket.