Board Thread:Game Updates/@comment-26154973-20190628094908/@comment-103.208.220.146-20190629134433

Correct. It can take 10 hours of sorties per day to get that high. They could've even bought resources off the shop.

The best way is to look up the ranking tables, do some maths, and act accordingly. It's still a hassle to reach Top 500 though (I need to do 15 7-1's daily along with the quests except for World 4 line) but you can stagger the quarterly quests if you think that the number of sorties you need to do daily is too much for you. Just don't let the game run you.