i would suggest to make navigation of the sub a bit easier (make a Lite version of this same sub)
you could eliminate the bottom floor of the back elevator and add a door to the second floor area so you only need to use the elevator to reach the top floor. i love the overall design of the sub. i dont want you to change it i just think more options would benefit both you and other players. the elevator doors are deadly maybe add a "stand clear" sign or light with a slight delay after a button press to call the elevator to reduce casualties.

I've created an AI friendly version of the sub, taking out the left elevator. Hopefully that makes things a little easier. Being so big the sub is going to be slightly difficult to navigate. In recent patches I've added in sections of glass wall/floor to show rooms people often miss too.