Naval Ops Series/Kurogane no Houkou 2: Warship Commander/Story

Prologue

As World War 2 intensifies
Our fleet was invading the enemy territorial waters for a top secret special operations.
The operations went smoothly...

However, we were suddenly engulfed by a mysterious light
that suddenly appeared on the sea.
When the light went off, we were already in a completely different world.

Right now there's only one thing we need to do:
Our objective is to destroy all the gigantic weapons known as "Superweapons" which are steadily nearing operational readiness.