A LSO would be nice. Aces of the Pacific had a nice system for the LSO on landing. A little window would pop up in the upper left corner of the screen when your gear and flaps came down and you were approaching the CV from astern, showing the LSO with his paddles. Too high above the glide slope, and the paddles would be up above his shoulders; too low, below the shoulders; wings not level would result in paddles adjusted to show which wing is low and which was high. For take-off, a simple red-light/green-light at the bow would be good, showing if the ship was turning or not. Not exactly historical, but certainly helpful. Obviously your compass (or looking up and out) will also give you a warning, but lights would still be nice.
Oh...and player controlled destroyers
