There is no code
Only jmsdf for mikasa
Some codes for Battleship Craft are:
Yes JMSDF
Jmsdf
vccda
the one code is jmsdf
Jmsdf
lkm436.9
Shad
jmsdf non-capitalised
There is not one
There ain't one
the one code is jmsdf
jmsdf is the only one that works
One code is jmsdf unlocks mikasa