First, go to THINK DEFENSE and read this article....
Next, consider this....
The other technique employed by the CVRs is known as “zapping”: …the CVR crew would engage the Argentine position with a brief burst of machine gun fire provoking a response, which was promptly silenced by the main gun. The 30mm RARDEN cannon, with its high velocity and great accuracy, was much favoured for this technique.The issue isn't whether or not such a tactic would work today...against even a moderately capable foe it wouldn't...the issue is the fact that even a light tank mounting a 30mm cannon provided fire support to airborne troops that they normally wouldn't have available.
The other issue is time.
The US Army announced a while ago that they were interested in a mobile gun or airborne tank for the 82nd. Since that announcement we haven't heard a thing. We've wasted time and the Army risks falling into the Marine Corps trap.....seeking perfect when good enough is all around them.
The CVR is being retired and is long in the tooth, however their are plenty of vehicles that match the requirements of the airborne tank. Its time the US Army got this done...even if they have to do an urgent operational request.
There is only one unit in the free world that can put a division ready brigade on the ground within 72 hours...they need to have the tools to fight and win when they get there...