I'm all in favor of 5" smoke rounds for the CV / CA / DD guns, and for adding the smoke generator to the PT boats (which HAD them).
I know HTC is worried about the frame rate hit on older machines, but really folks - it is time to stop worrying about folks that refuse to spend $60 on a video card that can handle it. Anybody that is serious about this game has already spent a whole lot more than that on joystick / throttle / rudder pedals / trackIR etc.
The availability of smoke rounds gives some defensive cover to the CV under fire from the shore battery, or from another CV group. It can also cover LANDING CRAFT instead of leaving them wallowing ashore under enemy fire like a sitting duck.
+10 for smoke.