Thread:Vermily/@comment-26567923-20160217015506/@comment-26567923-20160220122224

for non drum expedition, you need 5 sparkled ship to achieve GS, while drum expedition you only need 4 sparkled ship and extra drums.

if you realy desperate with bucket, do 2-4-21 while you active and 9-24-40 if you offline (replace 40 with 21 if you not unlocked it yet)

also always do daily, just from daily quest you can get 8 bucket. only do daily sortie using submarines, 3 or more subs to map 2-3 to be exact