Talk:Mission System/@comment-174.92.46.193-20151021053931/@comment-9571656-20151024133802

Actually Great Success is completely random but chance can be increased during special rate up events and VIP.

However if you always do 10 at a time when you do get the GS you will really notice it and it's so sweet. Unlike if you say only use 4 lvl 1s then it's like wth did you waste that for.