Stopping to pop open the hatch to shoot a missile is already considered to happen in game terms. As for ports on IFVs, no. We had some talk about them many moons ago, but the actual worth/use of port was slim to none and part of the reason they faded away on IFVs as time passed. You could have versions in the game by adding additional vehicle support weapons to a platform with editing.
OTS is looking forward to Southern Storm getting released!
Cap'n Darwin aka Jim Snyder
On Target Simulations LTD