WIP Scenario - The Battle of the San Bernardino Strait

[Eboreg]

So... I just bought this game and immediately loaded up the custom battle editor and decided to do what any self-respecting Pacific War History Buff would do if given these kind of resources. The Battle of the San Bernardino Strait is an alternate history battle scenario which many of you may find familiar. Unfortunately, I'm a little new to this so I don't exactly know what I'm doing and as such, some guidance would be very much appreciated in completing it. As it stands, this game doesn't have access to all the necessary units (at least, not in the vanilla form) so I don't see it being completed any time soon unless there's a mod out there that puts in the Iowa-class battleship, the Nagato-class battleship, and the destroyer Shimakaze.

Link:
https://ln.sync.com/dl/858f49c60/vh2d9a4d-m4nckarw-nn8v6nhn-nanrijh5