Talk:Winter 2017 Event/@comment-29813143-20170214013331

So if you haven't unlocked nodes L and M in E-1 you can lv up your subs using node D. Flagship will get MVP every time and perfect S rank for around 250-280exp. You don't have to worry about fatigue or repairs because your subs will never get hurt. I'm using it to train my newly found I-401 so I can use her to clear E-1 and E-3. Don't know if this will help anyone but me but I felt the need to post this anyways. Have fun!