In a more wordy fashion, the RE-class Battleship as she is in game has caused a lot of speculation among Kancolle fans, because her capabilities don't match anything that actually fought in WWII, and DMM has been pretty good about not fielding paper ships.

This has led some to speculate that she might be a ship that DID float, but was never finished. Possibly the USS Kentucky, the last of the Iowas, who at various points in her construction was considered for retrofitting as an Aviation Battleship (straight outta IJN) and a Guided Missile Battleship.