As the title says. Toilets, because why not? Can we get the option to go into the toilets on the train. Even if you can't use them it would still add a layer of immersion.
There is technically one you can see. It is on the USS Constitution on the NEC route. It is the head of the ship
It's a mastery reward for Boston Providence. I think it's near Boston back Bay, not sure but Boston is the only area in the route that has a large body of water
Yes and bring them on so that AI can use it and for us to explore. For the Metro North & LIRR M3 & M7s you find them in an Odd Numbered Carriage